SX PLANTS

EW PLANTS

LEACHING

HYDROMET

COALESCERS

     SX Kinetics, Inc. has completed over 110 projects in 23 countries for the recovery and separation of 26 metals. We are qualified and experienced in the provision of every aspect of solvent extraction technology and application. The following is a list of recent projects completed by SX Kinetics:

Royal Canadian Mint

Provided a 1100 L fibreglass dish bottom tank  with an mount for an air powered agitator.

BioMed International

Designed and manufactured a laboratory solvent extraction pilot plant with pH controllers for a company in Kuwait.

Shepherd Widnes Ltd

Designed and manufactured fifteen curve blade solvent extraction impellers for a cobalt solvent extraction plant in the UK.

Tshwane University of Technology

Designed and manufactured a laboratory leaching pilot plant for a research program at the Faculty of Engineering at Tshwane University in South Africa.

Royal Canadian Mint

Provided a 3 cubic foot filter press to the Royal Canadian Mint in Ottawa, Ontario, Canada.

Royal Canadian Mint

Provided four fibreglass holding tanks each having 1000 L capacity for refining silver.

Votorantim Metais – Cajamarquilla S.A. - Peru

Provided technical consulting service during commissioning of an indium solvent extraction plant.

Royal Canadian Mint

Provided a second 3 cubic foot filter press to the Royal Canadian Mint in Ottawa, Ontario, Canada.

Areva Resources Canada

Designed and manufactured a laboratory solvent extraction pilot plant with pH controllers for a test program at the McClean Lake mine site in northern Saskatchwan, Canada. The pilot plant was used to test various methods for uranium stripping.

Tanzania Gold

Designed and manufactured a small scale plant for the recovery of gold from a placer deposit in Tanzania. The process included leaching gold with sodium cyanide followed by carbon adsorption and electrowinning.

Royal Canadian Mint

Manufactured anode diaphragm bags for a gold electro-refining cell.

Shepherd Chemicals

Designed and manufactured nine mixer-settlers for a cobalt nitrate solvent extraction plant.

Royal Canadian Mint

Provided a 5 cubic foot filter press to the Royal Canadian Mint in Ottawa, Ontario, Canada.

Pacific Comex

Designed and manufactured a gold electrowinning pilot plant for a mining project in Sonora, Mexico.

Votorantim Metais – Cajamarquilla S.A. / AMEC - Peru

Designed and manufactured twelve mixer-setters for indium solvent extraction at a zinc refinery in Cajamarquilla, Peru.

Royal Canadian Mint - Ottawa

Designed and manufactured two FRP dish bottom tanks for a gold hydrometallurgical process.

BioMed International

Designed and manufactured a laboratory solvent extraction pilot plant with pH controllers for a research project in Kuwait.

Shepherd Color - USA

Assisted with a laboratory test program on the development of a solvent extraction process for the recovery of cobalt from cobalt nitrate solution.

Shepherd Widnes Ltd. - UK

Provided technical consulting on the design of the mixer box in a mixer-settler and designed and manufactured 15 SX curve blade impellers with drive units and motor mounts.

Tshwane University of Technology - South Africa

Designed and manufactured a laboratory agitation leaching pilot plant. The pilot plant included four cascading leach vessels with mixers, feed tanks, pumps, and discharge tanks.

Royal Canadian Mint - Ottawa

Provided a filter press for filtration of silver from a silver chloride solution.

KD Engineering

Prepared engineering drawings for a copper solvent extraction and electrowinning pilot plant for a copper heap leaching project in Panama.

Royal Canadian Mint - Ottawa

Provided four FRP holding tanks for silver refining.

Sary Kazna Mining Company LLP

Provided on site consulting and supervision during the commissioning and plant start up of a copper dump leach, solvent extraction, and electrowinning project in Kounrad, Kazakhstan.

Rio Tinto Minera Perú Limitada S.A.C.

Designed and manufactured a modular solvent extraction and electrowinning pilot plant for a copper heaping leaching project in Northern Peru.

Norilsk Níkel Harjavalta Oy

Designed and manufactured a laboratory solvent extraction pilot plant with ten stages of mixer-settlers for a research project in Finland.

ZeaChem Inc.

Designed and manufactured a laboratory solvent extraction pilot plant for the purification of acetic acid by a new proprietary technology. The laboratory plant featured sealed mixers and sealed settlers in order to use a solvent with a low flash point.

Sary Kazna Mining Company LLP

Designed and manufactured a large modular solvent extraction and electrowinning pilot plant for a copper dump leaching project in Kounrad (near Balqash) Kazakhstan. The plant produced 240 kg per day of copper with a design capacity of 100 L/min PLS.

Gulf Chemical & Metallurgical Corporation

Designed and manufactured a laboratory pilot plant for a uranium solvent extraction project.

CV.Geodrill Indonesia

We provided an electrowinning plant for a gold mining operation in Indonesia. The plant included an 800 ampere rectifier and an electrowinning cell with 15 cathode boxes. The plant can produce up to 140 kg per day of gold.

PCS Phosphate- North Carolina

Designed and manufactured a laboratory solvent extraction pilot plant featuring sealed mixers-settlers with jacketed settlers. The pilot plant included 18 mixer-settler stages with a jacketed organic vessel. The pilot plant was used to simulate their full scale solvent extraction column in their production plant for the extraction of impurities from phosphoric acid.

Hellenic Copper Mines Limited

Designed and manufactured a laboratory solvent extraction pilot for a copper mining company in Cyprus. The plant included 10 mixer-settler stages.

Hamoon Chemi Co - Iran

Assisted in a laboratory test programme aimed at the development of a new hydrometallurgical process to produce high purity cobalt sulphate crystals from a mixed cobalt oxide concentrate.

Royal Canadian Mint - Ottawa

Designed and manufactured a gold precipitation reactor.

MOL Hungarian Oil and Gas Plc

Designed and manufactured a solvent extraction pilot plant with wetted parts of stainless steel and Teflon for the extraction of impurities from lube oils. The pilot plant was operated at high temperature, above the flash point of the solvent, under a nitrogen gas blanket in the mixers, settlers, and feed tanks.

Management Services Inc

Provided technical consulting on the recovery of gold from oxidative chloride leach solution using solvent extraction followed by direct reduction to gold metal from the organic phase.

Arava Mines

Designed and manufactured a laboratory scale electrowinning pilot plant for a copper project in southern Israel.

Siderúrgica Nacional Sidenal S.A

Provided technical consulting on the recovery of zinc from electric arc furnace dust from an operation plant in Sogamoso, Colombia.

Labzinc Industries

Attended a series of technical meetings in Malaysia to present a hydrometallurgical method to extract zinc, copper, and nickel from a zinc oxide residue, copper sludge, and nickel catalysts.

Metals Finance

Designed and manufactured two pilot plant scale oil water separators (coalescers) for a copper solvent extraction project in Illinois, USA.

MaSer Canada Inc.

Provided technical consulting on the development of a new hydrometallurgical process to recover copper, nickel, zinc, lead, tin, gold, palladium, platinum, and silver from a red metal concentrate obtained from the shredding and delamination of scrap electronics and scrap computers.

Minera Pampa de Cobre - MILPO

Designed and manufactured a copper electrowinning pilot plant for an operating solvent extraction copper crystallization plant in southern Peru.

DERMET SA de CV

 Provided technical consulting on the implementation of a solvent extraction circuit, coupled to copper crystallization, for the production of copper sulphate from scrap copper metal.

National Iranian Copper Industries Company

 Designed and manufactured a laboratory solvent extraction pilot plant with 10 stages of mixer-settlers.

Iran Mineral Processing Research Center

 Designed and manufactured a portable and modular solvent extraction pilot plant that can be configured for any number of extraction, scrubbing, or stripping stages.

Iran Mineral Processing Research Center

 Designed and manufactured a portable and modular electrowinning pilot plant that can be configured for either copper, cobalt, or nickel electrowinning.

KD Bryansk Ltd / Moscow State Institute of Steel and Alloys

 Sold solvent extraction reagents to include: Escaid 110 diluent and 3,000 L of LIX extractant.

KD Bryansk Ltd / Moscow State Institute of Steel and Alloys

 Sold electrowinning reagents to include: Galactasol 20H3C 41 and hollow polypropylene balls. We also provided copper hanger bars.

KD Bryansk Ltd / Moscow State Institute of Steel and Alloys

 Sold pilot plant reagents to include: 2 drums of Polyox coagulant and10 bags of bags of diatomaceous earth filter aid.

Royal Canadian Mint

 Designed and manufactured a six agitation leaching plants for the extraction and purification of silver.

Kasese Cobalt Company Limited

 Provided technical consulting on methods to minimize organic entrainment, crud formation, organic losses and consulted on methods of crud treatment.

Isle Mining and Exploration

 Provided technical consulting on solvent extraction of gold from oxidative chloride Solution followed by direct reduction of gold from the organic phase.

Falconbridge Limited / Kidd Creek

Conducted solvent extraction tests to determine the extraction distribution curve of molybdenum by Alamine 336 from Indium plant SX feed.

Falconbridge Limited / Kidd Creek

Provided solvent extraction coalescer media for the mixer settlers at Kidd Creek Indium solvent extraction plant.

Southern Peru Copper Corporation

Designed and manufacture an electrowinning pilot plant for the leach / solvent extraction / electrowinning plant at the Toquepala copper mine in Tacna, Peru.

Moscow State Institute of Steel and Alloys (Technological University)

Provided mineral processing pilot plant equipment for the Udokan project in North eastern Russia. The equipment included Knelson concentrators, Falcon concentrators, Eriez magnetic separators, Bico bond ball mill, and F.W. Bell Gaussmeters.

Moscow State Institute of Steel and Alloys (Technological University)

Manufactured 10  anodes for a copper electrowinning pilot plant.

Moscow State Institute of Steel and Alloys (Technological University)

Designed and manufactured laboratory scale leaching, solvent extraction and electrowinning pilot plants for research programs at Moscow State Technical University.

Erdenet Mining Corporation

Designed and manufactured a copper solvent extraction and electrowinning pilot plant for a project in Mongolia. The pilot plant included 6 mixer settlers in the solvent extraction circuit and 4 cathodes in the electrowinning circuit. The plant was sized to produce 60 g of copper per hour.

Royal Canadian Mint

Designed and manufactured a small batch leaching plant for the extraction of gold, palladium, and platinum. The plant included the leach tank with agitator and feed and transfer pumps.

SR&ED / SX Kinetics, Inc.

Conducted a scientific research and experiment development program to evaluate flat blade impellers to curve blade impellers. The program determined that a curve blade SX impeller enhance the performance by providing higher pumping flow rates at lower impeller tip speeds. This gave less shear and in turn less entrainment. These new impellers are now provided on all of our laboratory solvent extraction pilot plants.

Heraeus Metal Processing, Inc.

Designed and constructed a solvent extraction pilot plant for the extraction of precious metals. The plant included 6 mixer-settlers with variable speed mixer motors coupled to polypropylene SX impellers. The plant was completely assembled on a support frame and included the feed pumps.

Versitile Industries, Inc. / Battelle

Designed and constructed a solvent extraction proto-type plant for the recovery of chromium from chrome plating shop waste waters. The plant was shipped to a US air force base in Utah.

Moscow State Institute of Steel and Alloys (Technological University)

Manufactured a bench scale solvent extraction and electrowinning pilot plant for the recovery of copper for an ore body in Russia. The plant was sized to produce 570 grams of copper cathode per day.

Moscow State Institute of Steel and Alloys (Technological University)

Assembled 60  anodes for a large scale electrowinning pilot plant.

Moscow State Institute of Steel and Alloys (Technological University)

Designed and manufactured a large scale copper solvent extraction pilot within 10 modular shipping frames. The pilot plant was sized to process 50 L/min of SX feed containing 5.6 g/L copper. The plant included the feed tanks, mixer-settlers, coalescer, organic tank, transfer tanks, and a crud treatment circuit.

North Group Inc.

Provided 2000 kg of di-2-ethyl-hexyl phosphoric acid (DEPHA) to a Russian-Canadian Trading Company.

New Jersey Institute of Technology

Designed and constructed a solvent extraction pilot plant for the extraction of proteins.

Amec / Canmine / MFC Bancorp Ltd.

Conducted, as part of a team, a due diligence evaluation of a cobalt refinery in Kasese, Uganda. The cobalt refinery included the following unit operations: bio-leaching, ferric precipitation, zinc solvent extraction, copper precipitation, cobalt solvent extraction, cobalt electrowinning, and nickel precipitation.

Canmine Resources Corporation

Designed and manufactured a laboratory scale solvent extraction pilot plant. The plant was manufactured from pyrex and included twelve stages. The unit was used to evaluate a new process for the removal of impurities from cobalt solutions.

Canmine Resources Corporation

Provided on site technical consulting during plant commissioning and plant start up of a new cobalt refinery. The process involved autoclave leaching, impurity precipitation, cobalt solvent extraction, cobalt and nickel precipitation, and silver recovery by cyanidation and cementation. Prepared SX plant operations instructions and trained operators.

Canmine Resources Corporation

Directed a laboratory test program to develop a solvent extraction process for production of higher purity cobalt products.

Mineral Recovery Specialists, Inc

Provided technical consulting services for the implementation of a new hydrometallurgical process to recover zirconium at a uranium mill owned by Cotter Corporation in Colorado.

Pacific Ores Metals and Chemicals, Inc.

Conducted a technical review of  experimental work on a tantalum and niobium project. The review was on laboratory results for leaching and solvent extraction of tantalum and niobium.

Summo Minerals Corporation

Prepared a basic review of current technical information on the Tarrazas project for the recovery of copper and zinc. The review included various flowsheet options to minimize or eliminated the need to neutralize acid prior to zinc solvent extraction. SX Kinetics provided a novel method to deplete copper prior to zinc SX and a method to remove and recover iron by solvent extraction.

Kress Enterprises, Inc.

Designed and manufactured a solvent extraction plant to purify and stabilize gas oil that was produced from waste motor oil. The plant was shipped to Belgium.

Versitile Industries Inc. / Battelle

Designed and fabricated a mobile solvent extraction pilot plant inside a 40’ cargo container. The mobile SX plant was operated at various electro-plating sites for the demonstration of a solvent extraction process to recover  chromium from spent plating bath solutions. SX Kinetics also provided on site technical consulting during plant start-up.

CMS Enterprises

Fabricated a turn-key solvent extraction pilot plant for zirconium. The plant included six mixer-settlers, feed and transfer tanks, structural support frames, containment trays, and all piping, values, fittings, and process control.
The plant was fabricated in Canada and shipped the client’s site in Colorado, USA.

Mineral Recovery Specialists, Inc 

Provided technical consulting services for the development of a hydrometallurgical process to recover zirconium from an ore in South America. The process included calcinations, leaching, solvent extraction, and precipitation.
Supervised the start-up and operation of a solvent extraction pilot plant for the recovery of zirconium.
Assisted in the engineering design of a full scale (750 gpm organic flow) zirconium solvent extraction plant.

CMS Enterprises

Fabricated a turn-key solvent extraction demo (3 ½ time larger than the prior plant) plant for zirconium. The plant included six mixer-settlers, feed and transfer tanks, structural support frames, containment trays, and all piping, values, fittings, and process control.
The plant was fabricated in Canada and shipped the client’s site in Colorado, USA.

CMS Enterprises

Fabricated a turn-key water leaching demo plant. The plant included three cascading tanks, agitators, impellers, immersion heaters, structural support frame, and all piping, values, fittings, and process control.
The plant was fabricated in Canada and shipped the client’s site in Colorado, USA.

CMS Enterprises

Fabricated a turn-key CCD demo plant. The plant included four cascading thickener tanks, agitator drive units with stainless steel rakes, moyno under flow pumps, structural support frame, and all piping, values, fittings, and process control.
The plant was fabricated in Canada and shipped the client’s site in Colorado, USA.

CMS Enterprises

Fabricated a turn-key acid leaching demo plant. The plant included three cascading FRP tanks, agitators, impellers, immersion heaters, structural support frame, and all piping, values, fittings, and process control.
The plant was fabricated in Canada and shipped the client’s site in Colorado, USA.

CMS Enterprises

Fabricated a three turn-key precipitation circuits for a demo plant. The circuits included five cascading stainless steel tanks, agitators, impellers, immersion heaters, structural support frame, and all piping, values, fittings, and process control.
The plant was fabricated in Canada and shipped the client’s site in Colorado, USA.

Canmine Inc.

Participated in technical meetings on the re-configuration of an existing hydrometallurgical process to a new process for the recovery of cobalt from cobalt-silver ore.

Mineral Chemicals Inc.

Participated in technical meetings to develop a conceptual process flowsheet for the recovery of zinc, copper, and indium from a calciner concentrate. The process involved selective leaching followed by solvent extraction of copper and indium.

Inter-Citic Environtec, Inc.

Participated in a technical review at the Jiangsu Haiwei Rare Earth Processing Facility, in China, for the expansion of plant capacity from 1,400 tonne per year to 2,500 tonne per year and the up-grade of product quality to 99.9 % La2O3, 99.95 % CeO2, 99.5 % Pr6O11, and 99.9 % Nd2O3. The expanded / up-graded process included six solvent extraction circuits having a total of 395 mixer-settlers. 

CTI, Inc.

Prepared a detailed proposal for engineering, technical design, procurement, and construction of a modular hydrometallurgical plant for the recovery of lutetium from scrap lutetium-silica-oxide (LSO) crystal detectors. The plant has the capacity to treat 338 kg of LSO per day. 

CIMTEC, S.A.

Prepared a detailed proposal for the supply of an SX-EW plant for the recovery of cobalt mixed nickel-cobalt sulphides. Provided technical assistance for the economic viability of producing one tonne per day of 99.9 % cobalt metal from the mixed sulphide by-product.

Recovery Dynamics, LLC
Assisted in the development of solvent extraction technologies for the recovery of uranium, tantalum, and scandium from a tantalum digestion residue. The process utilized two solvent extraction circuits: The primary circuit used Primine JM-T extractant for the recovery tantalum, and the secondary used a mixture of DEHPA and Cyanex 923 for the recovery of uranium and scandium. A novel method for scrubbing and stripping was developed.

Recovery Dynamics, LLC / International Uranium Corporation

Provided on site technical assistance (over a period of 11 months) for the conversion of uranium and vanadium solvent extraction circuits, at the White Mesa uranium mill, to SX circuits for the recovery of uranium, tantalum, and scandium.

Fansteel, Inc.
Provided three turn-key solvent extraction plants for the recovery of uranium, tantalum, and scandium at their site in Muskogee, Oklahoma. The plants were manufactured in Canada, and shipped to Oklahoma in October, 1998. 

University of Tennessee
Supplied a complete 15 stage solvent extraction pilot plant. The plant included mixer-settlers manufactured from pyrex glass with PVC impellers and variable speed agitators. The pilot plant was manufactured in Canada, and shipped to Tennessee in May, 1998.

CTI, Inc.
Consulted on solvent extraction technology for the recovery of lutetium from lutetium crystal reject material. Prepared P&ID’s, mass balance calculations, and plant layout for a complete hydrometallurgical process which included grinding, digestion, solvent extraction, precipitation, calcination, and effluent treatment.

Cobatec Limited
Provided technical assistance, in association with Richard C. Swider Consulting Engineers Limited, for a plant audit at Cobatec Limited cobalt production facility in northern Ontario.

Geominera, S.A.
Prepared a business plan for the creation of a new corporation that would provide a facility for contract research and development.

Commercial Caribbean Nickel, S.A. / Cobatec Limited
Introduced Cobatec to business and technical representatives of CCN, for obtaining a contract to supply Cobatec’s plant in Canada with a mixed nickel/cobalt concentrate.

Cobatec Limited
Prepared an operational set of guidelines for the operation of Cobatec’s SX plant, and provided training for their operators.

Centaur Mining Exploration Limited
Consulted on Zn, Mn, and Pb solvent extraction by Cyanex 302, Cyanex 272, DEHPA, and DEHPTA extractants. Calculated mixer-settler requirements for their process. 

Gramco Inc.
Consulted on leaching of gold and silver from scrap printed circuit boards, and the effect of the HCI/HNO₃ lixivant on the subsequent solvent extraction steps.

Recovery Dynamics, LLC
Provided on site assistance, for the development of new solvent extraction technology, for the recovery of scandium, tantalum, and uranium from a tantalum residue.

Western Holdings Inc. (Gramco)
Assisted in the implementation of a palladium solvent extraction circuit at a precious metals recovery plant in Woodscross, Utah. Negotiated, on behalf of the client, with petro-chemical manufactures, for the production and sale of 1.5 tonnes of di-n-octyl sulphide.

Dremco Inc.
Provided a hydrometallurgical flowsheet for the recovery of gold, silver, and copper from scrap jewellery. Located suppliers of components for a full scale plant to recover 1 kg of gold per day.

Centaur Mining Exploration Limited
Provided technical assistance on a solvent extraction process for the recovery of zinc and manganese from an acetate leach solution containing a high concentration of calcium. The ore body, known as “Yava” is located near Sydney, NS.

Minerals Associates
Developed four conceptual processes for the recovery of indium, copper, and zinc from the Mount Pleasant ore body.

EGO Resources / Cobatec
Provided on site technical assistance during construction and start up of a cobalt solvent extraction plant.

Kilborn Inc.
Conducted an effluent treatment program for the removal of arsenic and other heavy metals from a copper smelter effluent in India.

International Curator
Developed, as part of a team, a process for the recovery of cobalt, copper and zinc from an ore body in Boleo, Mexico. The leach solution, had twice the salt concentration of sea water and contained a high concentration of manganese. The test program evaluated various options using ion exchange and solvent extraction technologies.

Richard C. Swider Consulting Engineers Limited
Studied the effect of chloride ion concentration during the crystallization of ammonium sulphate at a typical uranium plant. Developed a method for the removal of chloride ions during uranium solvent extraction.

Cameco Corporation
Designed, procured and constructed a pilot plant inside 4 shipping containers for the recovery of cobalt and nickel from Key Lake uranium tailings. The plant included autoclave leaching, atmospheric leaching, 5 stages of CCD washing, selective precipitation, pressure filtration, 3 separate solvent extraction circuits, and 2 electrowinning circuits for cobalt and nickel. Supervised plant set up, start up and 4 months operation.

EGO Resources / Cobatec
Developed a conceptual process for the recovery of cobalt, copper, zinc, and cadmium from zinc refinery waste material known as “copper cake”. The process included selective zinc leaching, oxidative vat leaching, copper SX / EW, cadmium precipitation, ferric arsenate precipitation, and cobalt solvent extraction.

Westminer Canada Limited
Conducted bottle roll leach tests using sulphuric acid at pH 1.8, for the evaluation of El Indio copper oxide ore body in Chile.

Davy International
Designed, procured, and constructed a copper SX / EW pilot plant, including agitation leaching, 4 stages of CCD washing, and three 85 tonne heap leach cribs. Supervised plant set up and start up in Santa Lucia, Cuba. Trained Cuban operators.

Falconbridge Limited / Kidd Creek Division
Provided technical consulting services on phase disengagement and loading capacity problems in the cottrell dust indium SX plant.

North American Palladium Company
Developed a solvent extraction process for the recovery of gold, palladium, and platinum from an aqua regia leach solution. Di-octyl-sulphide and ZnX 50 extractants were evaluated for palladium recovery.

AKZO Chemicals
Evaluated various amine derivatives for reducing cyanide consumption during leaching of gold ores containing copper. 
E.I. DuPont
Assisted in the development of a new process to simultaneously recover gold, copper and cyanide from high cyanide consuming ores.

El Condor Resources Ltd.
Conducted bottle roll leach tests for copper with sulphuric acid followed by cyanidation leaching on the washed residue for gold.

Lac des Iles
Conducted solvent extraction tests for the extraction of palladium from chloride solutions. The test program evaluated Acorga CLX-50, Cyanex 471X and, di-n-octyl sulphide extractants.

Total Minatco (Richard C. Swider)
Studied the chemical stability of siloxirane coating under various process conditions.

Beta Metals/Cobatec Ltd.
Developed a solution purification/solvent extraction process for the recovery of cobalt and nickel from arsenic containing ores. The process included precipitation for removal of impurities, followed by cobalt solvent extraction. Cobalt electrowinning and nickel precipitation were evaluated as methods for product recovery.

Cameco Corporation
Supervised a test program for the recovery of nickel and cobalt from uranium tailings. The program included impurity precipitation tests, the development of a solvent extraction circuit, followed by electrowinning tests.

Western Copper Holdings Ltd.
Designed, constructed, and supervised the start-up and operation of a solvent extraction/electrowinning pilot plant for the recovery of copper from a large scale heap leaching test. The test was conducted on site, near Carmacks, Yukon, Canada.

Richard C. Swider/Lakefield Research
Co-invented a solvent extraction process for the recovery of sulphuric acid. A patent application was filed in October 1993.

Fluor Daniel Wright
Conducted a test program for the development of a solvent extraction process to recover zinc from EAF dust. The extraction of zinc chloride by Acorga's ZNX 50 was evaluated.

Total Minatco/Midwest Joint Venture Integrated Project
Confirmed Minatco's integrated flowsheet for processing a blend of Minatco and Midwest ore. The test program included two stage leaching, a large scale batch leach, a bulk solvent extraction test and tailings effluent treatment.

Tantalum Mining Corporation
Invented a process to reduce radioactivity from tantalum concentrates. The process included silica calcination, hydrochloric acid leaching, and acid regeneration.

Kilborn Inc./Reunion Mining (Zimbabwe) Limited
Developed a flowsheet for the recovery of copper and zinc from Sanyati ore. The flowsheet incorporated heap leaching, copper solvent extraction with Acorga M5640 and zinc solvent extraction with D2EHPA. A novel process was developed to remove ferric iron.

Midwest Joint Ventures
Conceived and developed a process to recover cobalt and nickel from uranium raffinate. The process included two stage precipitation for removal of impurities followed by cobalt-nickel precipitation. Solvent extraction for the separation of cobalt from nickel was evaluated. The process was presented at the CMP conference in January 1993.

Silver Standard Resources Inc.
Conducted locked cycle bottle roll leach tests, incorporating solvent extraction, on Williams Creek copper oxide ore. The test simulated a heap leaching-solvent extraction process.

A.D. Zunkel Consulting/Nerco Minerals Company
Directed solvent extraction testwork to recover copper, cobalt and nickel from a ferric chloride leach solution. The process included copper solvent extraction with Acorga CLX 50, ferric iron solvent extraction with TOPO, and cobalt solvent extraction with TIOA.

E.I. DuPont
Constructed and operated an ion exchange stripper column to obtain engineering design data for the elution of zinc cyanide from ion exchange resins.

E.I. DuPont
Investigated the effect of sodium cyanide and calcium cyanide lixiviants on the extraction efficiency of copper and gold from various ores.

Consulting Engineers Limited/Total Minatco Limited
Supervised a test program for the development of a flowsheet to recover uranium from Minatco's Sue A and Sue B ores. The flowsheet included atmospheric H2SO4/NaClO3 leaching, solvent extraction, hydrogen peroxide precipitation, effluent treatment, and environmental studies.

E.I. DuPont/Delamar Silver Mine
Optimized leaching conditions to reduce sodium cyanide consumption from 1.5 kg/t NaCN to less than 0.3 kg/t NaCN. Silver and gold leaching efficiency were not compromised.

Wimmera Industrial Minerals
Assisted in the development of a process to reduce the radioactivity of zircon concentrates. The process included lime calcination, hydrochloric acid leaching, and spray evaporation. The process was patented in 1992.

General Electric Canada Limited
Conceived and developed a process to treat spent zircaloy etching solutions for fluoride and zirconium removal.

Ivaco Rolling Mills Limited
Conducted leaching and sulphate roasting tests on electric arc furnace (EAF) dust samples to examine various processing options for the recovery of zinc.

Dofasco Limited
Conducted leaching tests on an EAF dust sample using various lixiviants.

Philip Environmental
Conducted leaching tests on an iron flue dust sample.

Industrial Minera Mexico
Conducted caustic, acid, and water leaching tests on an arsenic bag-house dust sample.

Lakefield Research
Conceptualized a process for the recovery of zinc, cadmium, and lead from electric arc furnace dust. The conceptual flowsheet included two stage sulphuric acid leaching, zinc solvent extraction using D2EHPA, cadmium and lead cementation.

Consulting Engineers Ltd./Urangesellschaft Canada Ltd.
Supervised a test program for the confirmation of a flowsheet to recover uranium from Sissons-Schultz ore. The program included leaching, thickening, solvent extraction, uranium precipitation, effluent treatment, and environmental testing.

Highwood Resources Inc./Strathcona Mineral Services
Directed a solvent extraction test program for the development of a process to recover zirconium from sulphate leach solutions. The process included Alamine 336 extraction, dilute acid scrubbing, and stripping by 400 g/L  sulphuric acid. A novel mechanism was discovered to minimize impurities co-extraction.

Melis Engineering/PNC Exploration
Supervised a test program for the development of a flowsheet to recover uranium from Midwest ore. Carbon adsorption was evaluated for the recovery of molybdenum.

Melis Engineering/Midwest Joint Ventures
Supervised and operated a solvent extraction pilot plant to evaluate various scrub solutions and stripping processes. Hydrogen peroxide precipitation was evaluated on pilot plant strip liquors. Effluent treatment and tailings solidification tests were conducted on process stream solutions and leach residues.

Kilborn Inc./Acadia Limited
Conducted leaching, settling, and filtration tests on Strange Lake ore body and concentrates for yttrium and zirconium recovery.

Kidd Creek/Falconbridge Limited
Conducted pressure filtration tests on copper concentrates.

Wright Engineering (Fluor Daniel Wright)
Supervised a test program to develop a flowsheet for the recovery of uranium from Malawi ore. Unit operations included grinding, leaching, thickening, ion exchange, solvent extraction, uranium precipitation, effluent treatment, and environmental testing.
 

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