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Foreign exchange rates for 16/12/2017
RUB/USD:58,8987
RUB/EUR:69,4298
London Metal Exchange data for 16/12/2017
Copper 6,110.00
Nickel 13,045.00
Tin 17,100.00
Lead 1,816.00
Zinc 2,078.50

RESEARCH AND DEVELOPMENT

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

NAME OF WORKS

CUSTOMER

ACCOMPLISHMENTS

2006

1.

Increase in production data of flotation processing ores from Maleevsk deposit and technogenic raw materials due to application of new generation reagents. JSC “Kaztsink”,
Zyryanovsky GOK
Kazakhstan
21.6 % concentrate was produced from copper-zinc ore slimes with 69.7 % polymetallic ore extraction; copper-lead concentrate with 13.6 % lead content with 81.5 % extraction and 16.2 % copper concentrate with 63.5 % extraction

2.

Increase in production data of flotation processing of Riddersky GOK ores and technogenic raw materials due to application of selective reagents of new generation at the concentrating plant RGOK. JSC “Kaztsink”,
“Riddersky GOK”,
Kazakhstan

Increase in Cu extraction into Cu – Pb concentrate by 5.23%, Pb- by 4.7. % with increase in Au extraction by 19.5 %; zinc extraction in Zn – Py cycle increased by 6.4 %, zinc content – by 6.3 %

3.

Modernization of flotation machines OK-38 in apatite flotation using aeration units RIF-9.

JSC “Apatity”
Russia

P2O5 extraction increased by 1-1.5 % and energy consumption reduced by 6.8. %

4.

Engineering setup and technical support of primary and associated equipment at sections 6-9 of the main building at copper concentrating plant after econstructtion. JSC “Almalyksky GMK”,
Uzbekistan
Commissioning work at monosections 3 and 4 of bulk flotation was made. Copper extraction at the new sections increased by 1.5-2 %.

5.

Increasing efficiency of flotation machines RIF 8.5 KS due to optimization of aeration unit impeller linear speeds. JSC “Uralkaliy”
Russia
KCl extraction into froth product increased by 1 %; KCl content in tails reduced by 16 %.

2007

1.

Testing on development technology of magnetite concentrate flotation production from Kostomykshky deposit ores.

Close JSC “Severstal-Resurs”,
JSC “Karelsky Okatysh”
Russia

New 71.06 % iron concentrate was produced with iron extraction 97.57 %; quartz content in the concentrate was 0.74 %

2.

Development of ore concentration technology for ores from Rubtsovskoe deposit with application of modern flotation reagents. JSC “Sibir-polymetaly”
Russia
Produced: 28.2 % copper concentrate with 72.7 % copper extraction; 45.8 % lead concentrate with 77.7.% lead extraction, 52.3 % zink concentrate with 72.2 5 zinc extraction.

3.

Pilot testing on hydrometallurgical copper concentrate dezincing at Uchalinsk concentrating plant.

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Zinc and cadmium extraction from copper concentrate made up 80 %.

4.

Testing technological regimes of wet classifying vibration screens and flotation machines RIF 8.5 at section 4 FOF BKPRU-3. JSC “Uralkaliy”
Russia
Drawing regime equipment instruction cards for all operations of the flowsheet.

5.

Designer’s service, installation supervision and commissioning at Kadzharansk concentrating plant with reference of its expansion and equipment modernization. Closed JSC
“Zangezursky copper-molybdenum integrated plant”
Armenia
Step-by-step reconstruction of the concentrating plant with non-stop production work.

6.

Investigations on flotation flowsheet and reagent regime improvement for copper molybdenum ores at Kadzharansk concentrating plant in laboratory conditions. Closed JSC
“Zangezursky copper-molybdenum integrated plant”
Armenia
Copper extraction increased by 1-3 %; molybdenum extraction – by 1-2 % with application of new flotation reagents.

7.

Pilot experiments on ore from Angrenssk deposit concentration technology at a pilot factory.

JSC “Almalyksky GMK”,
Uzbekistan

Concentrate grade improved due to the reduction of slag-forming agents without gold extraction loss

8.

Development of slime flotation technology in a particular cycle when concentrating copper-zinc ore from Uzelginsk deposit.

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Washed slime dressing technology in a particular cycle was developed.

9.

 

Production testing of attritioning machine OFK-15 SP ZAO “IVS” at JSC “Uchalinsky GOK” concentrating plant.

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Tests on the tails of 1st zinc concentrate after-treatment allowed to increase zinc extraction by 2-5 % in an operation and the grade of finished zinc concentrate without zinc extraction reduction.

10.

 

Introduction of a new flotation technology SP Closed JSC “IVS” at 3d line (section № 2) at the concentrating plant “Erdenet” with replacement of outdated equipment and reaching section productivity up to 6 mln. tons annually

KOO
“Erdenet” enterprise”
Mongolia

Bulk flotation section, equipped with 42 cells RIF 25 and 6 cells RIF 16 with ASSUP-PV systems and installation UDR-RIF were put into service ready-to-operate on December 14 th, 2007.

11.

Technical mastering of 1st line of the reconstructed flotation department at the concentrating plant JSC “Maikainzoloto”. Closed JSC
“Russkaya mednaya kompaniya”
JSC “Maikainzoloto”
Russia
Kazakhstan

Start-up operations were carried out; production data of Apyz deposit copper ore dressing were improved: copper concen-trate grade – from 10-12 % up to 14-21 % with copper extraction 77.8-83.4 %

2008

1.

Results of the comparative industrial tests in the floatation section of col-lective floatation #2 and #6 ИФО at the dressing plant «Erdenet».

KOO
“Erdenet” enterprise”
Mongolia

High efficiency of the section operation was shown with the annual processing of up to 7 million tonnes. Copper and molybdenum recovery was higher by 0,94% and 3,97% against the 6th section.

2.

Copper concentrate grade improved when processing ores from Udel-ginsk, Uchalinsk and Molodezhny deposits by 17 % with keeping the achieved extraction level.

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Copper concentrates grade improved along with keeping the achieved copper extraction level: from Uzelginsk polymetallic ore – up to 20 % (by 2.4 %); from Uzelginsk copper-zinc ore – up to 19.1 % (by 1.65%); from copper-zinc ore from Molodezhny deposit – up to 19.6 % ( by 4.7 %).

3.

Laboratory research on ore prepara-tion characteristics of pyritic copper-zinc ore from “Maikain” deposit. Closed JSC
“Russkaya mednaya kompaniya”
JSC “Maikainzoloto”
Russia
Kazakhstan

Bulk flotation flowsheet was developed for a prospect (without washing) with selection for 12.7 % copper concentrate and 56.05 % copper extraction and 35.11% zinc concentrate with 48.63 % zinc extraction.

4.

Modernization of flotation machine OK-38 in the operation of intercycle flotation at sections 2, 3 at the con-centrating plant with installation of aeration units RIF 11 instead of RIF 9.

RAO “Norilsk Nikel”,
JSC “Kolskaya GKM”
Russia

Nickel recovery into a similar grade concentrate increased twice and copper extraction increased by 20.74 % as compared to aeration units RIF 9 ( an operation).

5.

Copper concentrate grade improved when copper and copper-zinc ores processing at Sibaisk concentrating plant. Laboratory tests. JSC “UGMK-Holding”
JSC “ Uchalinsky GOK”
Sibaisky division
Russia
Copper concentrates grade improved: from Yubileiny deposit copper ore – up to 20.6 % (by 4.3 %); from Sibaisk deposit copper ore – up to 19.5% (by 3%); from Kamagansk deposit copper ore – up to 18.2 % ( by 1.7 %); from Kamagansk deposir copper –zinc ore – up to 19.5 % ( by 3.3 %); from Maiskoe deposit copper-zinc ore – up to o 18.5 % ( by 2.2 %).

6.

Performing laboratory research of the dressing capacity of the out-of-balance ores of Kalmakyr mine. JSC “Almalyksky GMK”,
Uzbekistan
From out-of-balance ore containing Сu 0,22 % and Мо 0,0044% collective concentrate was obtained containing Сu 9,3%, Мо 0,16% with the recovery of Сu 66,5%;Мо 61,7%, Аu 64,4%, Аg 66.2%

7.

Production testing of copper and cop-per-zinc processing technology with the purpose of copper concentrate grade improvement up to 20.0%

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Application of “Sci-Tech” company’s regents along with keeping processing and Cu and Zn extracting, provided for improvement of cop-per concentrate grade as a whole at the concentration plant up to 19.34%

8

Technological support and staff train-ing in service instruction of installed equipment when orу dressing technol-ogy development at concentrating plant Sibaiskaya. JSC “UGMK-Holding”
JSC “ Uchalinsky GOK”
Sibaisky division
Russia
Reconstruction of 3rd section of concentrating plant Sebaiskay allowed to increase ore processing on the average by 25% and to increase Cu concentrate of similar grade production by 34%, to increase Cu ex-traction by 1% (from 88.3% to 89.3%).

9

Development of production proce-dures for the reconstruction project realization: “OF. Project development for construction of screening unit for primary crushed ore further process-ing of throughs.”

RAO “Norilsk Nikel”,
JSC “Kolskaya GKM”
Russia

Method of preliminary screen separation with wet cleaning and using modern crushers and efficient screens at stages of intermediate and fine crushing was suggested, which will decrease coarseness of combined material supplied to the mills of stage 1 down to 14 mm.

2009

1.

Floating final concentration of iron-ore concentrate process testing. JSC “Poltavsky GOK”
Ukraine

Concentrate grade is increased from 57.3 to 63.8% with iron extraction 93.2%; silicon oxide content is decreased from 15.3 to 8.4%.

2.

Production testing and implemen-tation of a new technology for processing Cu-Mo ores at con-centrating plant KOO “Erdenet Enterprise”.

KOO
“Erdenet” enterprise”
Mongolia

Molybdenum extraction into market-grade molybdenum concentrate increased by 10-11%.

3.

Test investigation into the tech-nology for producing lime milk with elimination of harmful impuri-ties and studying the influence on flotation parameters.

 KOO
“Erdenet” enterprise”
Mongolia

Method of combined mechanical flotation scheme for lime milk purification was suggested.

4.

Test investigation into Cu-Mo ore flotation at low pH of pulp.

KOO
“Erdenet” enterprise”
Mongolia

The investigation demonstrated that it is possible to replace MIBK by frothing agent Oreprep 549 at pulp рН 8.0 instead of 8.5-9.0 without lowering bulk flotation parameters.

5.

Проведение тестовых исследований по Test investigation into expediency of concentration of bulk flotation middlings in a separate cycle for reducing losses of metals with tails while keeping the quality of bulk concentrate.

KOO
“Erdenet” enterprise”
Mongolia

Regrinding of flotation tail of 1st after-treatment up to 87% class – 45 mcm ensures growth of Cu extraction into middling flotation concentrate up to 10.06%, Mo – to 17.66% as compared to section 6 (without regrinding) while reducing losses of Cu and Mo with tails.

6.

Development of concentration technology for aged tails of the old tailings dump. Closed JSC
“Zangezursky copper-molybdenum integrated plant”
Armenia
Bulk Cu-Mo concentrate of Mo 0.8% and Cu 3.1% was produced in vitro with their extraction 60% and 55% respectively.

7.

In vitro research into elaboration of the scheme and reagent re-gime of copper-molybdenum ore flotation at Kadzharskaya concen-trating plant for increasing copper and molybdenum extraction into final concentrates while maintain-ing their quality.

Closed JSC
“Zangezursky copper-molybdenum integrated plant”
Armenia

List of flotation reagents was reduced; positive impact of 3-6 cleanings of bulk concentrate before selection and heating of slime flotation feeding was demonstrated; Mo and Cu extraction into final concentrates increased by 0.3 - 0.5%.

8.

Conducting comparative industrial tests of aeration units RIF 11 and Float-Forse by OUTOTEC Com-pany in flotation cells OK-38.

RAO “Norilsk Nikel”,
JSC “Kolskaya GKM”
Russia

Aerators RIF11 enabled to increase nickel and copper extraction into bulk concentrate by 6.5% and 3.1% respectively, as compared to aerators Float-Forse.

9.

Test investigation into polymetallic ore of Novo-Shirokinsky deposit for the purpose of production data im-provement. LLC “Russdragmet”
Russia
Results: gravitation con-centrate containing gold 230g/t with extraction up to 42.27% and flotation con-centrates: lead of 67.4% with Pb extraction 80.47%; copper of 21.8% quality with Cu extraction 52.3%; zinc of 61.7% quality.

10.

Development of apatite ore dress-ing technology in order to increase useful component recovery. ZAO “Evrohim”
OAO “Kovdorskiy Ore-dressing Complex”
Russia

A new collector is selected in laboratory conditions, which prevents heating and ensures apatite re-covery increase by 3.7% compared to factory re-agent regime.

11.

Development of copper-nickel ore dressing technology for Pecheng-skoye ore field.

RAO “Norilsk Nikel”,
JSC “Kolskaya GKM”
Russia

2 variants of bulk flotation new technology are devel-oped, which enable to re-ceive concentrates with Ni content of 12 and 15 %, MgO content of 3.5 and 1.8 %.

12.

Modernization of Ore-dressing Complex “Bor-Undur” concentration plant. KOO “Mongolrostsvetmet”,
GOK “Bor-Undur”
Mongolia

A new type of product is received: float concentrate with CaF2 content of 97.0-97.5% and SiO2 ≤content of ≤ 1%; recovery is in-creased by 10-12% (abs.) at ФФ-95,ФФ-97 concen-trates output; multichannel X-ray spectrometer СРМ-35 is used for concentrate rapid determination.

13.

Copper and copper-zink ore dress-ing technology industrial tests for Uchalinskoye, Uzelginskoye and Molodezhnoye deposits at increase of copper concentrate quality to 20 %.

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Quality of copper concentrate is increased to 20% from copper ore, to 19.3% - from copper-zink ore, total quality is 19.7% without Cu recovery decrease.

 

 

2010

 

1.

Improving the floatation technique using high-efficiency agents for processing the auriferous ores of the Kokpatas and Daugyztau fields in GMZ-3 in order to increase gold re-covery. Navoiy mining-and-metallurgical inte-grated works,
Public Company.
Uzbekistan
A new beneficiation technique was developed to beneficiate sulphide auriferous ores with increased performance data. Original data were given for com-mercial testing

2.

Running the commercial tests of im-proved floatation technique of Kok-patas and Daugyztau auriferous ores with implementation of intermediate floatation in the GMZ-3 Train I.

Navoiy mining-and-metallurgical inte-grated works,
Public Company.
Uzbekistan

Implementation of intermediate floatation in the GMZ-3 Train I enabled 85% gold recovery in the Kokpatas field.

3.

Development of a beneficiation tech-nique to beneficiate aged tailings at Kagaran beneficiation plant. Closed JSC
“Zangezursky copper-molybdenum integrated plant”
Armenia
A collective and selective process flow sheet and an agent mode of technogenic material processing were developed in a lab envronment to produce copper and molybdenum concentrates.

4.

Development of a beneficiation tech-nique to beneficiate high-carbonate fluorite ores.

KOO “Mongolrostsvetmet”,
GOK “Bor-Undur”
Mongolia

A process flow sheet of high-carbonate fluorite ore beneficiation without steaming operation using selective modifying and collecting agents was developed in a lab environment.

5.

Industrial commissioning assimi-lation of the new equipment pro-duced by JSC «IVS» in the col-lective floatation cycle of Сu-Мо ore at the 3rd section of DP.

KOO
“Erdenet” enterprise”
Mongolia

Start-up works were performed, new equipment was assimilated in the reconstructed 3rd section. The section was introduced into industrial operation, it works steadily exceeding the projected technological indexes.

6.

Development of apatite ore dressing technology in order to increase useful component re-covery. ZAO “Evrohim”
OAO “Kovdorskiy Ore-dressing Complex”
Russia
In laboratory conditions, the possibility to increase the technological indexes was shown for apatite floatation using the new reactant-collector.

7.

Increasing zinc concentrate quality up to 51.0% obtained from copper-zinc ore processed at the Uchaly dressing plant with development of technological regulation of the zinc cycle reconstruction.

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

2 variants of technological schemes were developed to allow increasing the zinc concentrate quality up to 51-52% with zinc recovery of 82- 82,5% due to implementation of final grinding operations for rough zinc heads, pulp heating and attrition complex ОФК-15 РИФ implementation.
According to the research results the zinc cycle reconstruction technological regulation was developed and approved for the plant.

8.

Performing technical and technological examination of the dressing production of Gaisky dressing plant providing recommendations to increase the dressing indexes and perform scientific research for development of current and following mining ores dressing technology to provide the increase of copper and precious metals recovery.

JSC “UGMK- Holding”,
Russia

 

Suggestion for improvement of the technological scheme and ore dressing modes were provided for the current mining of Gaisky mine and the equipment modernization.
9. Tests of the dressing capacity of copper-zinc ore of Gaisky mine.

JSC “UGMK- Holding”,
Russia

According to the test research results, from the ore containing copper of 1,45 % and zinc of 0,56 % copper concentrate was obtained containing copper 20% with copper recovery of 86% and zinc concentrate containing zinc 50% with recovery of 45 %.

10.

Development of copper-zinc ore dressing technology of Tarnyer mine providing the increase of copper and zinc recovery, performing technical and technological examination of the dressing production of JSC «Svyatogor» providing recommendations to increase the copper ore and converter slags dressing indexes. JSC «Svyatogor»
RUSSIA
The technology was developed allowing to obtain copper concentrate containing Сu 20,2 % with recovery of 88,5% and zinc concentrate containing Zn 54,9%
with recovery of 44,5%. According to the examination results, recommendations were provided to increase the technological indexes of DP operation.

 

 

2011

 

1.

Performing scientific research in order to develop copper ore and converter slags dressing technology providing the increase of technological indexes.
3 stage – 2011
JSC «Svyatogor»
RUSSIA
Based on the sample of Си ore of Shemur mine, copper concentrate was obtained containing Cu 20,15% with recovery of 86,58%.
Based on the sample of converter slags, copper concentrate was obtained containing Cu 24,5% with recovery of 89,4%. Based on the sample of Safyanovsk industrial raw materials, copper concentration was obtained containing Cu 21,5% with recovery of 93,3%.

2.

Performing examination of the regulations for reconstruction of the dressing plant of JSC «Svyatogor» executed by the institute JSC Uralmechnobr». JSC «Svyatogor»
RUSSIA
Examination of the technical regulation was performed for the dressing plant JSC «Svyatogor» reconstruction for ore processing of 2.5 million tonnes per year.

3.

Correction of the technological regulation of feasibility study for copper and copper-zinc ore processing of the Ubileynoe mine for Khaybulla dressing plant.

JSC “UGMK- Holding”,

Russia

Based on the sample of the copper-zinc ore of the Ubileynoe mine current mining, copper concentrate was obtained containing Сu 21,0% with recovery of 88% and zinc concentrate containing Zn 45% with recovery of 71%.

4.

Technological maintenance, assimilation of the dressing technology and training of the service staff in terms of the equipment operation rules at Khaybulla dressing plant. (2010-2011)

JSC “UGMK- Holding”,

Russia

Khaybulla DP was launched according to the developed technology, executed regulation and feasibility study for copper and copper-zinc ores processing of the Ubileynoe mine obtaining the trade products from the copper ore containing copper 19,5% with recovery of 87,0%. The staff is trained in terms of operation of the new equipment of JSC IVS.

5.

Development of technological regulation for ore processing of South-Shamey molybdenum mine. LLC «Mining company Ural gold»
RUSSIA

Regulation for 2 types of ore was developed: from granite type ore during laboratory tests molybdenum concentrate was obtained containing Мо 49% with recovery not less than 87,5%; as well as feldspathic and micaceous concentrates. From granite-stale ore type – molybdenum concentrate containing Мо not less than 49% with recovery of not less than 83%; feldspathic and micaceous concentrates.

6.

Development of the top level copper-zinc ore dressing technology of the Uzelginsk mine.

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

According to the developed technology, copper concentrate was obtained containing Cu 19,55% with recovery 82,94% and zinc concentrate containing 50,41% with recovery 81,93%.

7.

Technological regulation for reconstruction of floatation and reactant departments of Gaisky dressing plant in order to increase the current and following mining ore dressing indexes

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Technical regulation was developed and approved for the plant. From the mine ore of the current mining, copper concentrate was obtained containing Cu 20% with recovery of 87,6% and zinc concentrate containing zinc 50% with recovery of 45,54%. According to the technology without zinc obtaining, copper concentrate was obtained containing copper 20,76% with recovery 88,43%. From the ore of the following mining without zinc obtaining, copper concentrate was obtained containing copper 18,13% with recovery of 86,48%

8.

Development of technological regulation for processing of Ubileynoe-Snegirikhinsk ore at Nikolaevsk and Belousov dressing plants. Corporation «Kazakhmys»
Kazakhstan
According to the developed technology, copper concentrate was obtained containing Cu 20% with recovery of 90% (against 17,9% and 87,95% for 2010) and zinc concentrate containing Zn 45% with recovery of 70% against 35,17% and 47,2% for 2010.

9.

Development of technological regulation for Nikolaevsk dressing plant engineering for polymetallic ore processing of Artemyevsk mine in the volume of 1600 thousand tonnes per year. Corporation «Kazakhmys»
Kazakhstan
New technology was developed to process the ore of Artemyevsk mine providing the growth of valuable components in the trade concentrates at the level reached at NDP: copper in Cu concentrate – more than 16,4 % with the increased content of Cu in the concentrate by 3,0%; lead in Pb concentrate – by 3,2% with the increased content of Pb in the concentrate by 19 %; zinc in Zn concentrate – by 10,45% with the increased content of Zn by 6,85%.
Losses of gold with final tailing is reduced by 24%.

10.

Development of technological regulation for Nikolaevsk dressing plant engineering to process copper-zinc ore of Nikolaevsk mine

Corporation «Kazakhmys»
Kazakhstan

New technology was developed to process the ore of Nikolaevsk mine providing the growth of valuable components recovery in the trade concentrates at the level reached at NDP: copper in Cu concentrate – by 16,23 %; zinc in Zn concentrate – by 8,45% with trade concentrates quality increase.

11.

Performing tests of copper-molybdenum ores of Kalmakyr mine to define the Bond index and power consumption to select the grinding equipment for the project «Reconstruction of crushing and grinding departments of the copper dressing plant». JSC “Almalyksky GMK”,
Uzbekistan
Tests of 3 samples of the main type ores containing the species of Cu-Мо ores and one mixed sample from the unique Kalmakyr mine performed in the laboratories SGS VOSTOK LIVMITED (Chita, Russia) and SGS MIN-ERALS SERVICES (Ontario, Canada) considering the Bond index allowed to define the rated flow of useful power: 9.7-11.5 kW-h/t – for spherical grinding and 9,7- 11,5 kWh/t – for semi-self-grinding process. Based on the results of industrial tests of the bulk sample of these samples mixture (Angrensk mill, Uzbekistan) the rated flow of useful power were: 11 kW-h/t and 6,3 kW-h/t correspondingly. The test results were used to select the large-scale equipment (МПСИ, МШЦ) for ore preparation department reconstruction МОФ.

12.

Development of technological regulation of ore preparation finishing for the project «Reconstruction of crushing and grinding departments of the copper dressing plant»

JSC “Almalyksky GMK”,
Uzbekistan

Development of the technology of two-stage ore grinding using semi-self-grinding process reaching the final grinding fineness not less than of 60-65% class minus 0,074 mm.
To equip the 1st stage of the complex with the productivity of 15 million tonnes per year, it is recommended to use the following dimensions of mills produced by «Krupp Polisius»: one МПСИ-11,0х6,1m and two МШЦ-7,3х11,8m.

13.

Performing test research for the floatation and hydrometallurgy products in order to increase the throughout gold recovery in ГМЗ-3.

Navoiy mining-and-metallurgical inte-grated works,
Public Company.
Uzbekistan

Final floatation recovery (from operation) technology was developed about 88% Ме from bio-cake and up to 48% from final tailing of cyanidation.

 

2012

 

1.

Defining the feasibility of oxidized ferruginous quartzite processing involvement JSC «Inguletsk MDP»
Ukraine
Research were performed to develop the dressing technology for the oxidized ferruginous quartzite obtaining trade iron containing concentrates.

2.

Development and introduction of the technology obtaining super-concentrate without copper recovery reduction.

KOO
“Erdenet” enterprise”
Mongolia

At the final stage

3.

Performing test research to divide the collective copper-molybdenum concentrate obtaining the trade copper and molybdenum concentrates at «Carmen Copper Company»

Carmen Copper
Company

Philippines

According to the test research results, from the factory copper concentrate containing 25,58% Сu and 0,789% Мо, trade molybdenum concentrate containing Мо more than 50,0 % and copper concentrate containing Cu more than 25,0 %

4.

Technological examination of the dressing plant of «Carmen Copper Company»

Carmen Copper
Company

Philippines

According to the examination results, recommendations were provided for further extension of the dressing production.

5.

Development of the technology of obtaining high-quality iron containing concentrate from copper ore of Carmen Copper Corporation defining the parameters for the following increase of the plant productivity, development of the scheme and technological process with recommendations of the equipment specifications for technical engineering.

Carmen Copper
Company

Philippines

According to the test research results, iron content was increased in the factory concentrate from 52% to 64% without iron recovery reduction.

6.

Development of copper sulfide ore dressing technology of Sultanovsk mine

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Research of high-sulfur samples (pyrite content in the ore was 80-85%) of top horizons ores of Sultanovsk mine was performed. From copper ore with copper content of 1,80-1,40% copper concentrate was obtained containing 19,5% copper and with the recovery of 83-85,0%. From copper-zinc ore containing secondary copper minerals – 35,0% containing copper - 0,95% , zinc – 1,30%, copper concentrate was obtained with the copper weight ratio – 16,0%, recovery – 80,0% and zinc concentrate containing zinc 50,0%, zinc – 30,0%.

7.

Development of copper-zinc ore dressing technology of the West-Lake mine

JSC “UGMK- Holding”,
JSC “ Uchalinsky GOK”
Russia

Research was performed on 5 high-sulfur ore samples (pyrite content in the ore was 80-85%) of the top horizons of the West-Lake mine. Dressing technologies were developed for the ores with various content of the secondary copper (up to 50,0%) and tennantite copper content up to 64%. From copper-zinc ore with secondary copper minerals – 35,0% with copper content - 1,20%, zinc – 1,60% copper concentrate was obtained with copper weight ratio – 19,5%, recovery – 84,0% and zinc concentrate containing zinc 50,0% and zinc recovery – 55,0%.

2013

1.

Development of concentrating technology of copper-zinc ore from Priorskoe deposit of AMK, LLP.

Aktyubinsk Copper Company LLP,

Russia

 

Copper concentrate with copper content 18.5% with the recovery of 80.97%, and Zinc concentrate with zinc content 49,16% with the recovery of 80.08%, have been produced of ore with copper content – 0.92%, zinc – 3.93%, sulphur – 45.5%. The developed technology ensures growth of copper and zinc recovery by more than 2.0%, while concen-trate grade will increase by more than 3.0%

2. Technological audit of concentrating mills CM-1 and CM-2 of AMK, LLP

Aktyubinsk Copper Company LLP, Priorskoe deposit

Russia

Based on audit results, concentrating mills CM-1 and CM-2 have been upgraded, in CM-1 was commissioned after reconstruction in December 2013, processing copper ore from “50 Let Oktyabrya” deposit; copper recovery growth made up 2.0% with the grade of copper concentrate 20%.
3. Development of technology and production procedure for ore processing from Dergamysh deposit.

OJSC "Bashmed"

Russia
A flotation concentrating technology for copper-zinc-cobalt and copper-cobalt ores from top horizons appliable to the conditions of Kaybulliskaya CM has been developed; feasibility of cobalt and zinc concentrate has been proven.
4. Development of concentraing technology of sulphide copper and copper-zinc ore from New-Shemur deposit, and production procedure for the construction of “Severnaya” plant.

OJSC "Svyatogor"

Russia
19-20% copper concentrate with the recovery of 90.0-87.7% and 50.0% zinc concentrate with the recovery of 79.5% have been produced of ore with copper content of 1.4-1.75%, zinc 4.5%, sulphur 45.5%.
5. Development of concentraing technology of oxidized ore from Volkovskoe deposit processed at CM of OJSCSvyatogor

OJSC "Svyatogor"

Russia
Concentrating technology of oxi-dized ore with oxidation degree from 40.0 to 70.0%, with the production of copper concentrate with copper content of 18-21% and the extraction of 75 %
6. Development of concentrating technology of ore from Stepnoe deposit including further reconstruction of Rubtsovskaya CM

OJSC "Siberia-Polymetals"

Russia

Copper concentrate with copper content 21% and the recovery of 75%, lead concentrate with lead content 45% and the recovery of 77.0%, and zinc concentrate with zinc content of 50 % and the recovery of при 80 %, have been produced of ore with copper content 0.8%, lead 2.2%, and zinc 5.3.
7. Technological audit of CM OJSC Novoshirokinsky Mine

OJSC “Novoshirokinsky Mine”

Russia
Recommendations regarding optimization of the technological process at Novoshirokinsky Concentrating Mill have been given
8. Test study of flotation technology for after-treatment of magnetite concentrate base in the engineering laboratory of PJSC Inguletsky GOK

PJSC "Inguletsky GOK"

Ukraine
The research resulted in obtaining a concentrate with iron content of 69.5%, silicone oxide content 1.7%, and iron recovery in operation 96%.
9. A technology developed for concentration of polymetallic ore from Novoshirokinsky deposit in order to increase production parameters and recover copper and pyrite concentrates.

OJSC “Novoshirokinsky Mine”

Russia

Concentrates produced of ore with copper content 0.15%, lead 2.62%, zinc 1.21%, gold 3.22 g/t are as follows:

Сu concentrate with copper content 25.00% and the recovery of 72.36%

Рb concentrate with lead content 56.00% and the recovery of 87.08%

Zn concentrate with zinc content 53.00% and the recovery of 78.67%

Pyrite concentrate with Fe content 30.00% and Fe recovery 4.17%

Au Content of 53.00 g/t, Fe recovery 14.0%.

Implementation of inter-cycle flotation by technology developed by JV CJSC IVS is planned.
10. A technology developed for oxidized ferrous quartzite concentrating for the construction of a crushing-anf-concentrating complex at Ingulets deposit.

PJSC "Inguletsky GOK"

Ukraine
Ferrous concentrate has been produced of ore with Fe content 36.49% and SiO2 content 3.25% is as fol-lows:Fe content 66.55%, Fe recovery 90.71%. SiO2 content 3. 25% Four types of dominant ores from Inguletsky deposit have additionally been studied for convergence in the developed concentrating technology.
11. A technology developed for polymetallic ore concentrating from Korbalikhinskoe deposit without the use of cyanide in order to increase production parameters and reconstruct the Rubtsovskaya concentrating mill.

OJSC "Siberia-Polymetals"

Russia

Concentrates produced of ore with Cu content 0.92%, Pb 2.62%, zinc 6.15% are as follows:Copper concentrate Content 21.05%,Recovery 74.35%

Lead concentrate Content 48.00%, Recovery 80.33%

Zinc concentrate Content 52.00%, Recovery 84.30%

12. Development of technology and elaboration of the production procedure for concentration of copper ore from Maukskoe deposit.

CJSC Karabashmed,

Russia
A technology of concentration of copper ore from Maukskoe deposit has been developed.
2014
1. Commercial assimilation of the ore dressing technology for the Artemyevskoye deposit's ore, developed by JV CJSC IVS (CJSC SPA RIVS) for the Nikolayevsky concentrator. Kazakhmys Corporation PLC
Kazakhstan
Turn-key reconstruction of the Nikolayevsky concentrator according to company-developed regulations.
2. Development of an out-of-balance ore flotation technology considering man-made ore-mineral transformation.

Erdenet Mining Corporation LLC
Mongolia

An out-of-balance ore sample that contained 0.24% of Cu and 0.007% of Mo produced bulk concentrate with contents of 15% of copper and 0.475% of Mo with yields of 77% and 70%, respectively. The obtained product complies with standard grades of factory bulk concentrate produced from the current-production ore
3. Technology development for production of copper superconcentrate without decrease in copper extraction.

Erdenet Mining Corporation LLC
Mongolia

Copper concentrate with a copper content of 27–28% was produced from run-of-mine ore. The technology provides separation of initial raw material into sand and slurry fractions to be processed separately.
4. Test trials in order to develop a rational technology of flotation metal-content upgrading for magnetic-separation concentrates. “Poltavsky GOK” OJSC
Ukraine
The studies resulted in production of a concentrate with an iron content of 69.50%, a silicon oxide content of 1.75%, and iron yield of 94.62% of the operation.
5. Development of Process Regulations for ore burden processing for Dzhurkovo and Druzhba deposits at the Laki Concentrator of “Laki Invest” JSC in order to dress a commercial copper concentrate and decrease the silicon dioxide content in a zinc concentrate to 1.5%. “Laki Invest” JSC
Bulgaria
The following concentrates were extracted from the ore burden that contained 0.15% of Cu, 2.51% of Pb, and 1.99% of Zn: copper concentrate, Cu content of 24.50%, Cu yield of 73.04%; lead concentrate, Pb content of 70.10%, Pb yield of 93.20%; zinc concentrate, Zn content of 57.40%, Zn yield of 88.17%, SiO2 content of 0.71%. The technology was developed without sodium cyanide to produce additional commercial products as the copper concentrate and to ensure higher quality of the zinc concentrate due to a decreased content of silicon dioxide (< 1%) therein.
6. Higher gold recovery from the overall output ores processed at a concentrator of “Uchalinsky GOK” OJSC. “Uchalinsky GOK” OJSC
Russia
A gold recovery increasing technology was developed for dressing of sulphide-type copper and copper-zinc ores processed at the concentrator of Uchalinsky GOK JSC. Gold recovery was increased by 6.0%, from 12.0% to 18.0%, to obtain the 18% copper concentrate.
7. Studies of preparation characteristics of copper oxide ores from the Dergamysh deposit. “Bashkirskaya Med” LLC
Russia
A dressing technology for copper-cobalt ore from the Dergamysh deposit was developed
8. Development of a dressing technology and processing regulations for copper-cobalt ore from the Dergamysh deposit with flotation concentrating methods “Bashkirskaya Med” LLC
Russia
A dressing technology for copper-cobalt ore from the Dergamysh deposit was developed.
9. Development of a dressing technology and processing regulations for copper-zinc-cobalt ore from the Dergamysh deposit with flotation concentrating methods. “Bashkirskaya Med” LLC
Russia
A dressing technology for copper-zinc-cobalt ore from the Dergamysh deposit was developed.
10. Development of a dressing technology and processing regulations for current-production ore from the Yubileynoye deposit with the zinc concentrate extracted. “Bashkirskaya Med” LLC
Russia
A sample of current-production copper sulphide ore with a zinc content of 0.8% from the Yubileynoye deposit was used to study in laboratory conditions if it is possible to recover a commercial-grade zinc concentrate.
11. Development of an ore processing technology and regulations for polymetallic ore from the Stepnoye deposit at the Rubtsovsk concentrator in order to increase a capacity up to 1.5 million tons a year UMMC-Holding LLC, “Siberia Polymetals”
Russia
The developed ore processing technology for polymetallic ore from the Stepnoye deposit gave the following results: the copper concentrate with a copper content of 21% at yield of 78.73%; the zinc concentrate with a zinc content of 52.53% at yield of 82.16%; and the lead concentrate with a lead content of 59.6% at yield of 74.64%.
12. Improvement of processing patterns and modes for copper-cobalt ore from the Dergamysh deposit, engineering support for commercial tests of pilot current-production ore lots at the concentrator of “Bashkirskaya Med” LLC. “Bashkirskaya Med” LLC
Russia
Commercial tests of the developed ore dressing technology for copper-cobalt ore from the Dergamysh deposit were carried out.
13. Development of a processing technology for lead-zinc ore burden from the Krushev Dol deposit and the Petrovitsa deposit and for lead-zinc ore from the Rudmetall deposit with possible recovery of the zinc concentrate with a SiO2 content less than 1.5%. “Gorubso Madan” JSC
Bulgaria
Ore burden from the Krushev Dol deposit and the Petrovitsa deposit
The following concentrates were produced from ore that contained 2.75% of Pb and 2.39% of Zn:
Lead concentrate, content of 71.00%, yield of 95.01%.
Zinc concentrate, content of 58.00%, yield of 90.51%.
SiO2 content of 0.91%.
Ore from the Rudmetall deposit
The following concentrates were produced from the ore that contained 3.16% of Pb and 1.25% of Zn:
Lead concentrate, content of 72.00%, yield of 96.84%.
Zinc concentrate, content of 55.00%, yield of 86.24%.
SiO2 content of 1.01%.
14. Reworking of the process regulations in terms of too high indicators of deep shaft ore from the Gayskoye deposit UMMC-Holding LLC
“Gaysky GOK”
Correction of the previously developed technology with the achieved copper yield of 90.0% is in progress.
15. Development of process regulations for dressing of copper-zinc ore from the Chebachye deposit at the Aleksandrinskaya concentrator. Test trials of the Aleksandrinskaya’s copper-zinc ore Russian Copper Company Based on the previous test studies, process regulations are under development for processing of sulphide copper-zinc ores from the Chebachye and Aleksandrinskoye deposits .
16. Research works for dressing of copper ore from the Maukskoye deposit with development of process regulations Russian Copper Company A dressing technology for copper ore from the Maukskoye deposit in processing conditions at “Karabashmed” CJSC is under development.
17. Development of Process Regulations for a reconstruction project of the Nurkazgan concentrator for dressing of copper ore from the Nurkazgan deposit in the amount of 4.0 million tons of ore a year Kazakhmys Corporation PLC A dressing technology was developed for porphyry copper ores of the Nurkazgan deposit to ensure production of a copper concentrate with maximum by-product extraction of gold and silver, in conditions of a higher annual capacity with no decrease in qualitative and quantitative indicators.
18. Process testing to determine preparation characteristics of various ore types from Elkinskoye deposit and preparation of basic data for feasibility study of exploratory standards “Voronezhgeologia” LLC A technology of bulk-concentrate production with maximum yield of target and by-product elements on two copper-nickel ore samples from the Elkinskoye deposit was developed.
19. Process testing to determine preparation characteristics of various ore types from Elanskoye deposit and preparation of basic data for feasibility study of exploratory standards “Voronezhgeologia” LLC

A technology of bulk-concentrate production with maximum yield of target and by-product elements on three copper-nickel ore samples from the Elanskoye deposit was developed

20. Engineering support of Norilsk concentrator reconstruction for dressing of ores from the Artemyevskoye and Yubileyno-Snegirikhinskoye deposits on a basis of new developed technologies. Kazakhmys Corporation PLC

Engineering support of the developed technology resulted in amendments to a selection pattern for a copper-lead concentrate from polymetallic ore and correction of reagent consumptions and feed points. Standards copper and zinc indicators from two ore grades were achieved.

21.   Kazakhmys Corporation PLC

Upon the results of the Zhezkent concentrator technology audit, a report with recommendations on improvement of the ore dressing technology for the Orlovskoye deposit’s ore was submitted to the customer

22.   Kazakhmys Corporation PLC

Upon the results of the Balkhash concentrator technology audit, a report with recommendations on improvement of the ore dressing technology for the concentrator was submitted to the customer.

23.   Kazakhmys Corporation PLC

The earlier developed process regulations were amended. A process flow diagram of polymetallic-ore dressing was corrected. Final process indicators and the reagent treatment were determined.

  2015
1. Research was carried out for gold recovery from tailings of the Belaya Gora gold processing plant. “RDM” LLC
(Russia)

A flotation technology for gold tailings processing was developed.
The following gold concentrate were extracted from tailings that contained 0.43g/ton of Au: Au content of 20.73g/ton, Au yield of 77.30%.

2. Development of process regulations for ore processing at the Ermorechenskaya concentrator. “Rodopi Eco Projects” EOOD
(Bulgaria)

A flotation technology for cyanide-free dressing of polymetallic ore from the Ermorechenskoye deposit was developed. The technology is patented by JV CJSC IVS
The following concentrates were extracted from the ore that contained 0.21% of Cu, 4.50% of Pb, and 4.60% of Zn:
Copper concentrate, Cu content of 25.00%, yield of 72.51%, Pb content of 1.87%.
Lead concentrate, Pb content of 75.50%, yield of 94.47%, Cu content of 0.13%.
Zinc concentrate, Zn content of 57.00%, yield of 90.64%, SiO2 content of 0.59%.

3. Feasibility identification for the Shiraldzhin deposit's involvement in gold-ore processing with potential multistage construction of a gold processing plant. “Altyn Kumushtak Mining” LLC
(Kyrgyzstan)

A flotation ore-dressing technology was developed to produce flotation gold, ferromanganese, and silicon-containing concentrates.
The following concentrates were extracted from the ore that contained 3.87g/ton of Au and 27.07% of Fe:
Gold concentrate: Au content of 41.38g/ton, yield of 87.33%.
Ferromanganese concentrate: Fe content of 52.90%, yield of 74.59%, Mn content of 5.97%.

4. Process studies for preparation characteristics of polymetallic and copper-zinc ores from the secondary Artemyevskoye deposit with development of ore-dressing process regulations for the Norilsk concentrator. “Vostoktsvetmet” LLP
(Kazakhstan)

A dressing technology for polymetallic and copper-zinc ore from the second Artemyevskoye deposit, to be processed at the Nikolayevsky concentrator was developed.
The following were produced from polymetallic ore with contents of copper 1.50%, lead 2.26%, zinc 6.27%, and 1.52g/ton of gold:
- Copper concentrate with copper content of 24.26% at copper yield of 86.53%.
- Lead concentrate with lead content of 48.00% at lead yield of 74.34%.
- Zinc concentrate with zinc content of 52.80% at zinc yield of 85.14%.
The total gold yield into the copper and lead concentrates is 70.64%.
The following were produced from copper-zinc ore containing 1.54% of copper and 2.89% of zinc:
- Copper concentrate with copper content of 20.73%at copper yield of 88.04%.
- Zinc concentrate with zinc content of 52.27% at zinc yield of 85.02%.

5. Engineering support of Norilsk concentrator reconstruction for dressing of ores from the Artemyevskoye and Yubileyno-Snegirikhinskoye deposits on a basis of a new polymetallic and copper-zinc ore dressing technology. “Vostoktsvetmet” LLP
(Kazakhstan)

Engineering support of the developed technology for processing of polymetallic ore from the first Artemyevskoye deposit and copper-zinc ore from the Yubileyno-Snegirikhinskoye deposit at the Norilsk concentrator resulted in adjustment and confirmation of standard dressing indicators for these ores. The customer has accepted the work acceptance certificates for engineering support.

6. Research and studies of potential implementation of partial water circulation in Cu-Mo ore processing at the Kajaran concentrator. “Zangezursky MMK” CJSC
(Armenia)

Twenty-percent water circulation is recommended upon the results of performed studies.

7. Commercial tests of the developed technology in the copper-lead flotation cycle at the Novo-Shirokinskaya concentrator with laboratory studies on selection of the produced Cu-Pb concentrate. “Rusdragmet” LLC

The carried out commercial tests in the copper-lead flotation cycle confirmed standard qualitative indicators.
The copper-lead concentrate was produced: the content of lead – 45.34%, copper – 4.09%, and gold – 29.22g/ton with yield of lead – 88.33%, copper – 81.23%, and gold – 54.59%.
The recommended reagent treatment considerably decreases the consumption of highly toxic reagent, sodium cyanide, from 45g/ton to 8g/ton.
Laboratory-based selection of the produced Cu-Pb concentrate according to the recommended treatment resulted in the copper concentrate with the copper content of 29.45% at copper yield of 81.10% of the operation into the copper concentrate (65.88% of the ore containing 0.3% of copper).
Gold yield into the copper concentrate was 70.2% from the operation with the gold content in the concentrate of 258.7g/ton.
Lead concentrate with the lead content of 46.03% at lead yield of 87.36% of the ore.
Gold yield into the lead concentrate was 29.8% of the operation.

8. Development of a circulating-water preparation technology with determining the ion-composition-optimal values to stabilize the process at the Nikolayevsky concentrator. "Vostoktsvetmet” LLP
(Kazakhstan)

A circulating-water preparation technology for the Nikolayevsky concentrator was developed to eliminate negative impact of circulating water used in the current-production ore processing technology. The technology developed will allow recovery of the slurry Redox potential, containment of xanthogenate within its structure, and prevention of xanthogenate-to-dixanthogenate transition.
Circulating-water preparation based on the recommended ion composition will allow stabilization of qualitative dressing indicators for polymetallic ore from the Artemyevskoye deposit and continuous maintenance of their standard levels.

9. Commercial tests of flotation machines TK-20-2 by Tüfekçioğlu, Turkey, and RIF-25 by JV CJSC IVS at the Zhezkazgan concentrator. Kazakhmys Corporation PLC
(Kazakhstan)

The obtained commercial test results for flotation machines showed the following:
The sand copper flotation cycle on a RIF-25 flotation machine provided copper yield of 92.16% into the concentrate against 91.72% in the identical flotation cycle on a flotation machine by Tüfekçioğlu, Turkey. Commercial tests will be continued as soon as the required air consumption and inlet air pressure of the RIF-25 flotation machine are ensured.

10. Laboratory tests of an OFK (attrition flotation system) for surface preparation of the rough copper concentrate mineral mass to intensify the leaching process. “Kazgidromed” LLP
(Kazakhstan)

The purpose of the work was to determine if it is possible to use the OFK attrition system by JV CJSC IVS in the flotation technology for the Zhezkazgan 1, 2 concentrator's copper-containing final tailings to reextract copper into the rough copper concentrate, as followed by copper and noble-metals leaching as well as to use the OFK in the leaching technology.
The laboratory studies performed to determine efficiency of the OFK attrition system 's use in the flotation and leaching technology established higher process indicators and a shorter leaching time by 3.5 times when the OFK is used in these operations.

11. Engineering design support for commercial tests of aeration units by JV CJSC IVS in the basic-flotation operation as compared with existing aeration units in the parallel flotation line at the concentrator. “Polyus” CJSC

The results obtained show the following:
- Design characteristics of the RIF-13 aeration system by JV CJSC IVS provide higher yield of fine-grained gold and raw feed to be processed.
- Quantity of the air dispersed to the flotation machine chamber with the RIF-13 aeration system is higher by 201m3/hour than for FPM 100 serial machines.

12. Development of a dressing technology for copper ore from the Ozernoye deposit to produce standard copper concentrates. UMMC-Holding LLC

The following was extracted from the ore with a copper content of 1.37%:
- Copper concentrate 19.48% at yield of 90.81% (laboratory studies).
The following is produced from ore with a copper content of 2.31%:
- Copper concentrate 19.54% at yield of 93.42% (laboratory studies).
At commercial implementation of the developed technology, the following is produced from ore with a copper content of 1.78%:
- Copper concentrate with a copper content of 20.74% and yield of 87.4%.

13. Studies of preparation characteristics of copper-zinc ores from the Yubileynoye deposit for 4-5 ore shoots and development of ore processing at the concentrator of “Bashkirskaya Med” LLC. “Bashkirskaya Med” LLC

The following were produced from ore containing 1.89% of copper, 1.25% of zinc, 1.77g/ton of gold, and 18.44g/ton of silver (laboratory studies):
- Common copper concentrate with copper content of 17.95% at copper yield of 84.91%.
- Zinc concentrate with zinc content of 51.63% at zinc yield of 32.05%.
The following were produced from the ore containing 1.50–2.19% of copper and 1.25-1.28% of zinc (commercial tests):
- Copper concentrate with a copper content of 18.70-19.76% at copper yield of 80.43-83.0% and a zinc content of 2.54-6.0%.
- Rough zinc concentrate with a copper content of 46.60–47.28% at yield of 23.83-50.31%.
- Zinc concentrate with a zinc content of 40.0% at yield of 98.77% of the operation, which is approximately 40.0% of ore.

14. Development of process regulations for processing of BMZ's current and dump slags in an autogenous grinding building of the Balkhash concentrator with technical and economic feasibility assessment for implementation of the technology selected. Kazakhmys Corporation PLC
(Kazakhstan)

A processing technology for dump and mature slags from the metallurgical production at “BMZ” OJSC concentrator was developed.
Five studied samples were used to show a copper-yield dependence on the physical composition and identify a dependence on a slag cooling method. Copper yield of 70.0% at quality of 15.5% from slags with a copper content of 0.9% was achieved. An upgrading project was developed for a slag processing section of the Balkhash concentrator at capacity of 1.0 million tons of ore a year.

15. Development of process regulations for comprehensive ore mining at the Abyz and Akbastau deposits to produce copper, zinc, and pyrite concentrates for Karagaily concentrator upgrading. Kazakhmys Corporation PLC
(Kazakhstan)

Process regulations were developed for processing of gold-containing copper-zinc ores from the Akbastau deposit (copper and copper-zinc ores) and the Abyz deposit with subsequent Karagaily concentrator reconstruction with total processing of 2.0 million tons of ore a year. A technology was developed to increase copper concentrate quality from 10% to 18% without decrease in copper and gold yield indicators (on the level of 80.0%), which would reduce concentrate transportation expenses. The developed technology will also produce a 45% zinc concentrate from the Abyz deposit ore with a zinc content of 1.2% and yield of less than 55.0% (the zinc concentrate is currently out of production).

16. Development of a dressing technology for oxidized gold ore from the Vostochno-Semenovsky mine. “Semenovsky Rudnik” LLC

According to a diagram developed by JV CJSC IVS, a sample of gold ore with a gold mass fraction of 1.7g/ton, silver – 7.5g/ton, iron – 3.08%, and total sulphur – 0.47% produced the following:
- Gravity concentrates at grinding stage I (40%-0.074mm) with quality of 104g/ton and yield of 18.27% and at grinding stage II with gold quality of 50.29g/ton and yield of 16.48%.
- Gold-containing flotation concentrate of intercycle flotation recleaning with a content of 49.6g/ton and yield of 32.79%.
- Second recleaning concentrate with a gold content of 27.25g/ton and yield of 12.53%.
Quality of the ultimate gravity-flotation concentrate was 49.3g/ton of gold with yield of 80.08%.
The developed regulations show possibilities of a combined gold recovery technology using both gravity and flotation.

17. Test studies of preparation characteristics of mixed copper ores from the Udokan deposit. Baikal Mining Company LLC

Test studies for preparation characteristics of mixed copper ores from the Udokan deposit were carried out by flotation methods in order to optimize reagent treatment and a flotation flow diagram during production of a bulk concentrate with a copper content of 13-14% and yield levels as follows:
- from a sample with an oxidized copper content of 30.0–90.0%;
- from a sample with an oxidized copper content of 45.0–89.0%;
- from a sample with an oxidized copper content of 60.0–87.0%.

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