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Process Engineers to the Mining and Chemical Industry Since 1982


TYPICAL GOLD EXPERIENCE


PROJECT

 

ACTIVITY

 

 

 

Arthur W. White Mine

 -

Pressure and atmospheric pre-treatment test on 

Ontario, Canada

 

arsenopyrite/pyrite flotation concentrate

 

 

 

Baker Gold Mine

-

Mechanical assessment of mill facilities

British Columbia, Canada

 

 

 

 

 

Big Creek JV

- 

Heap leach assessment

Yukon, Canada

- 

Metallurgy review

 

 

 

Bootleg Gold Mill

- 

Process plant assessment

Saskatchewan, Canada

- 

Equipment evaluation

300 TPD Flotation/Cyanidation/CIP

- 

Engineering. Procurement and construction to upgrade the mill to 300 tons

Mill

 

per day

 

- 

Mill start-up

 

- 

Contract operation and processing of a 20,000 ton bulk sample

 

- 

Metallurgical tests on other property ores

 

 

 

Boroo Gold Mine

- 

Mill operation and maintenance start-up assistance

Mongolia

 

 

5,000 TPD Gravity/Cyanidation/CIP

 

 

Mill

 

 

 

 

 

Bronson Creek Copper/Gold

- 

Metallurgical testing of hypogene copper/gold mineralization

Project

 

 

British Columbia, Canada

 

 

 

 

 

Casino Copper/Gold Project

- 

Preparation of composites

Yukon, Canada

- 

Review of past metallurgical work

 

- 

Metallurgical test program, including flotation and leaching, on leach cap,

 

 

supergene and hydrogene mineralization for copper, gold, silver and

 

 

molybdenum recovery

 

- 

Development of process to recover gold, silver and copper from cyanide

 

 

leach solution including recycling of cyanide

 

- 

Operating cost estimates for review of potential copper/gold recovery

 

 

processes

 

 

 

Cheni Gold Mine

- 

Contract operation and maintenance of complete mill facility for two periods

British Columbia, Canada

 

of four to six weeks each

500 TPD Cyanidation/Merrill-Crowe

- 

Achieved record gold and silver production

Flotation Mill

 

 

 

 

 

Citadel Gold Mine

- 

Mine and mill maintenance review and recommendations for cost reductions

Ontario, Canada

- 

Detailed assessment of mill operation and personnel

500 TPD /Gravity/Cyanidation

- 

Mill shutdown and moth balling of equipment

/Merrill- Crowe Mill

 

 

 

 

 

Cluff Lake Gold Plant

- 

Process design of gold recovery circuit to recover gold from uranium tailings

Saskatchewan, Canada

- 

Flowsheet development

20 TPD Cyanidation/CIP/Mill

- 

Cost estimating

 

- 

Engineering assistance

 

- 

Mill start-up

 

- 

Contract operation of cyanidation/carbon-in-pulp gold plant

 

- 

Operator training

 

- 

Operation of AVR cyanide recovery circuit

 

 

 

Colomac Gold Mine

- 

Evaluation of milling facility

Northwest Territories

- 

Cost estimates for mill reactivation at different throughputs

10,000 TPD Cyanidation/CIP Gold

 

 

Mill

 

 

 

 

 

Contact Lake Gold Mine

- 

Review and recommendations for metallurgical accounting

Saskatchewan, Canada

- 

Valuation of milling facilities

750 TPD Gravity/Cyanidation/CIP

 

 

Gold Mill

 

 

 

 

 

Coxheath Gold Mine

- 

Mill troubleshooting and assessment

Nova Scotia, Canada

- 

Contract supervision of mill operation

200 TPD Gravity Mill

- 

Preparation of operating procedures

 

- 

Metallurgy optimization

 

 

 

Cullaton Lake Gold Mine

- 

Process review

Northwest Territories, Canada

- 

Equipment assessment

 

- 

Due diligence report on mill facilities

 

 

 

East Main Project

- 

Detailed review of feasibility study

Quebec, Canada

 

 

 

 

 

Elf Atochem

- 

Arranged gold mine visits and provided assistance regarding plant trials of

Paris, France

 

new carbon stripping process

 

- 

Market evaluation study for ACTIRED® gold process

 

 

 

EnviroGold Technologies Inc.

- 

Recommendations for gold milling operation

Nova Scotia, Canada

 

 

 

 

 

Environment Canada

- 

Detailed evaluation of the environmental impact of cyanide in gold mill

Ontario, Canada

 

effluents

 

 

 

EMR - CANMET

- 

Detailed report on process and waste treatment technologies for the gold

Ontario, Canada

 

mining industry

 

- 

Detailed report on Ontario/Quebec operating gold mills for Brazilian officials

 

- 

Arranged and led visit of Canadian gold mines for Brazilian officials

 

 

 

Fish Lake (Prosperity) Copper/Gold

- 

Detailed review of past metallurgical work

Project

- 

Detailed the preparation of composites to represent different areas of the

British Columbia, Canada

 

deposit

 

- 

Coordination and direction of metallurgical test program on several

 

 

composites to achieve acceptable copper and gold recoveries

 

- 

Environmental testing

 

- 

Preparation of detailed metallurgical report for pre-feasibility study

 

- 

Preparation of detailed flowsheets for gold/copper recovery for

 

 

pre-feasibility study, complete with material balance, equipment sizing and

 

 

listing of process design criteria for 60,000 TPD concentrator

 

- 

Hydrometallurgical and pyrometallurgical tests and preparation of conceptual

 

 

smelter flowsheet for pyrometallurgical treatment of flotation concentrate to

 

 

reduce the level of penalty elements

 

- 

Capital and operating cost estimate of pyrometallurgical treatment of flotation

 

 

concentrate

 

- 

Pilot plant testing of various composites from the deposit

 

- 

Process engineering, including detailed flowsheets and material balances,

 

 

detailed design criteria, and summary of metallurgy for feasibility study

 

 

 

Fork Lake Gold Project

- 

Evaluation of proposed mill lease and custom milling arrangements

Saskatchewan, Canada

 

 

 

 

 

Fyre Lake Copper/Gold Project

- 

Metallurgical testing including gravity, flotation and leaching

Yukon, Canada

 

 

 

 

 

Gilt Edge Gold Mine

- 

Review and audit of metallurgical data for processing sulphide gold

 

 

mineralization

South Dakota, USA

- 

Review of estimated operating costs

 

 

 

Grant Gold Mine

- 

Process design

Alaska, USA

- 

Cost Estimating

230 TPD Gravity Cyanidation/CIP

- 

Engineering

Mill

- 

Procurement

 

- 

Construction of gravity/cyanidation/carbon-in-pulp gold mill

 

- 

Mill start-up

 

- 

Hands-on supervision of operation

 

- 

Heap leach testing of surface ore

 

 

 

Golden Bear Gold Mine

- 

Feasibility report

British Columbia, Canada

- 

Detailed metallurgical and environmental test work on refractory gold ore

350 TPD Roasting/Cyanidation/CIP

- 

Development of cyanide treatment of mill tailings using roaster off-gas

Mill

- 

Process design

 

- 

Detailed cost estimates

 

- 

Heat balance for a dry grinding/roasting circuit

 

- 

General metallurgical engineering

 

- 

Preparation of basic engineering

 

 

 

Great Bend Resources

- 

Gravity testing of a Yukon placer deposit

Yukon, Canada

 

 

 

 

 

Harmony Gold Project

- 

Review of previous (Cinola) metallurgical work

British Columbia, Canada

- 

Recommendations for test program

 

- 

Metallurgical test program to investigate gravity, flotation and leaching gold

 

 

recovery

 

- 

Detailed flowsheets for gravity flotation/bioleach/carbon-in-leach process

 

- 

Capital and operating cost estimates

 

 

 

Heap Leaching

- 

Evaluation of a proprietary improvement method for heap leaching

USA

 

 

 

 

 

Hydrochem

- 

Carbon stripping test for Nitraur process

Ontario, Canada

 

 

 

 

 

Interox

- 

Study on current gold milling practices in Canada

Texas, USA

 

 

 

 

 

Hope Brook Gold Mine

- 

Pre-operational testing

Newfoundland, Canada

- 

Mill commissioning

3,000 TPD Heap Leach and

- 

Plant start-up and operation

Cyanidation/CIP Mill

- 

Operator training

 

- 

Preparation of detailed operating manual for heap leach operation

 

- 

Commission of 3,000 TPD CIP gold mill and waste treatment circuit for

 

 

removal of cyanide and copper

 

- 

Instrumentation services

 

- 

Preparation of detailed commissioning procedures

 

- 

Preparation and utilization for tracking construction and mill commissioning

 

 

 

Jolu Gold Project

- 

Surface engineering services for camp

Saskatchewan, Canada

- 

Assessment of bulk sample processing

 

- 

Preparation of waste management section of Environmental Impact

 

- 

Assessment Metallurgical testwork review and process recommendation for

 

 

the Rod Zone orebody

 

- 

Troubleshooting of waste treatment circuit for cyanide destruction and

 

 

copper removal

 

 

 

Kemess Copper/Gold Project

- 

Coordination and direction of metallurgical test program to achieve

British Columbia, Canada

 

acceptable copper and gold recoveries from supergene and hydrogene

 

 

mineralization

 

- 

Completion of extensive metallurgical test program on 25 composites to

 

 

quantify recovery and NSR variability across the deposit

 

- 

Preparation of conceptual flowsheet and process description

 

- 

Preparation of milling component of Prospectus to B.C. Mine Development

 

 

Steering Committee

 

- 

Preparation of detailed flowsheets for 40,000 TPD copper/gold concentrator

 

 

complete with material balances and equipment sizing, and listing of process

 

 

design criteria for pre-feasibility study

 

 

 

Kensington Gold Project

- 

Participation in metallurgical task force to review processing options

Juneau, Alaska, USA

- 

Coordination and supervision of metallurgical test program leading to

 

 

selection of a more cost effective processing option for the project

 

 

 

Ketza River Gold Mine

- 

Feasibility assessment

Yukon, Canada

- 

Engineering review

350 TPD Cyanidation/CIP Mill

- 

Mill construction monitoring

 

- 

Preparation of detailed operating manual

 

 -

Mill commissioning

 

- 

Plant start-up

 

- 

Operating assistance

 

- 

Sulphide ore metallurgy

 

- 

Due diligence report on the mill and waste treatment facilities and sulphide

 

 

metallurgy

 

- 

Assessment and economic evaluation of mill facilities for technical suitability

 

 

for processing of Grew Creek ore

 

 

 

Komis Gold Project

- 

Technical and economical evaluation of bulk sample processing in local mill

Saskatchewan, Canada

 

facility versus processing at a commercial laboratory

 

- 

Detailed assessment and costing of rehabilitation requirements for Jolu Mill

 

 

 

Ladner Creek Gold Mine

- 

Mill and equipment assessment

British Columbia, Canada

- 

Metallurgical and waste treatment testwork

1,350 TPD Flotation/Cyanidation/

- 

Detailed discussions with North American and overseas smelters for sale of

Merrill-Crowe Gold Mill

 

concentrate

 

- 

Capital and operating cost assessment of process alternatives including

 

 

gravity, flotation and cyanidation to select the most economic process for the

 

 

project

 

- 

Recovery of gold from existing tailings

 

 

 

Magino Gold Mill

- 

Detailed assessment of crushing and grinding circuit

Ontario, Canada

- 

Recommendations and engineering for modifications to increase mill

 

 

capacity

600 TPD Cyanidation/CIP/Gold Mill

- 

Installation of a new Omnicone crusher and retrofit of associated equipment

 

- 

Engineering of new ore dump, ore bin and rock breaker installation

 

 

 

Mali Gold Deposit

- 

On-site metallurgical evaluation of placer and vein- type gold deposit

Mali, West Africa

- 

Metallurgical testing to establish gold recovery efficiencies for different

 

 

process options and to confirm deposit grades

 

 

 

Mallard Lake Project

- 

Process testwork

Saskatchewan, Canada

- 

Preparation of design basis

 

 

 

Mishi Lake Gold Project

- 

Metallurgical testwork

Ontario, Canada

- 

Process design

 

- 

Bulk sample processing

 

- 

Joint milling assessment

 

 

 

Mt. Milligan Copper/Gold

- 

Detailed the preparation of composites to represent all areas of the deposit

Project

- 

Copper/Gold metallurgy and process development

British Columbia, Canada

- 

Environmental test program

 

- 

Evaluation of process options

 

- 

Process design parameters established

 

- 

Complete coordination and direction of SAG milling/flotation bench-scale

 

 

testwork and pilot plant on bulk samples

 

- 

Preparation of detailed flowsheets, equipment sizing and design criteria for

 

 

60,000 TPD copper/gold concentrator

 

- 

Operating cost estimate

 

- 

Preparation of metallurgical component of pre-feasibility document

 

- 

Trip reports on several large copper concentrators

 

- 

Technical assistance to Placer Dome Inc. in pilot plant confirmation of

 

 

process

 

 

 

Mt. Nansen Gold Project

- 

Metallurgical testwork on oxide mineralization

Yukon, Canada

- 

Metallurgical testwork on sulphide mineralization

 

- 

Process design

 

- 

Mill assessment

 

- 

Heap leach testing

 

- 

Preparation of flowsheets and general arrangement drawings for 300 TPD

 

 

mill retrofit

 

- 

Preparation of capital and operating cost estimates

 

- 

Preparation of detailed feasibility study for mill and surface facilities

 

- 

Testing and economic evaluation of bioleach treatment of refractory

 

 

concentrate for cyanide gold recovery

 

 

 

Mt. Skukum Mill

- 

Assessment and evaluation of mill facilities for technical suitability for

Yukon, Canada

 

processing of Grew Creek mineralization

 

 

 

New Britannia Gold Mine

-

Contract mill operation and maintenance for processing

Manitoba, Canada

 

25,000 ton ore stockpile

2,000 TPD Cyanidation/CIP Gold

- 

Start-up assistance

Mill

- 

On-shift operator training and supervision

 

- 

Assessment and recommendations for assay laboratory

 

- 

Metallurgical plant audit and metallurgical accounting recommendations

 

 

 

Nicholas Lake Gold Project

- 

Process design

Northwest Territories, Canada

- 

Metallurgical testwork

 

- 

Costing of bulk sample crushing plant

 

- 

Capital and operating cost estimates complete with conceptual plant design

 

 

for 350 TPD gold mill

 

 

 

Oxychem

- 

Technical assistance and detailed review of cyanide destruction options

Quebec, Canada

- 

Detailed report of gold mill operations in Canada

 

 

 

Pogo Project

- 

Pilot plant operation at Lakefield Research

Alaska, USA

 

 

 

 

 

QR Gold Mine

- 

Preparation of detailed feasibility study for mill and surface facilities

British Columbia, Canada

- 

Metallurgical and environmental testwork

 

- 

Process design

 

- 

Preparation of flowsheets and general arrangement drawings for 400 TPD

 

 

mill

 

- 

Preparation of capital and operating costs estimates

 

- 

Valuation of milling facilities

 

 

 

Red Chris Copper/Gold Project

- 

Metallurgical audit of test program

British Columbia, Canada

 

 

 

 

 

Red Lake Gold Mine

- 

Mill audit of existing facility

Ontario, Canada

- 

Preparation of flowsheets and equipment sizing for different gold mill circuits

 

- 

Capital and operating cost estimates for different process options and

 

 

different tonnage throughputs

 

- 

Assessment of used gold mills

 

 

 

San Martin Gold Project

- 

Preparation and execution of metallurgical test program

Honduras

- 

Detailed metallurgical report for feasibility purposes

Heap Leach

 

 

 

 

 

Seabee Gold Mine

- 

Bulk sample assessment

Saskatchewan, Canada

- 

Process review

500 TPD Cyanidation/CIP Gold Mill

- 

Metallurgical and environmental testwork

 

- 

Procurement and retrofit of aggregate crushing plant

 

- 

Fabrication of concrete batch plant

 

- 

Transportation of construction materials over winter road

 

- 

Sourcing and assessment of used gold mills

 

- 

Mill and metallurgical audit

 

 

 

Saskatchewan Mining and

- 

Detailed report on waste management and cyanide treatment for gold mill

Development Corporation

 

tailings

Saskatchewan, Canada

- 

Detailed review of cyanide destruction alternatives

 

 

 

 

 

 

Securities Commission

- 

Technical assessment of proprietary gold recovery process

Saskatchewan, Canada

 

 

 

 

 

Shoal Lake Project

- 

Pre-treatment tests on refractory arsenopyrite/pyrite gold mineralization

Ontario, Canada

 

 

 

 

 

Skukum Creek Project

- 

Gold, Silver, Lead, and Zinc metallurgy development

Yukon, Canada

- 

Process design

 

- 

Engineering

 

- 

Preparation of flowsheets for retrofitted flotation/ cyanidation mill

 

- 

Mill retrofit and assessment

 

- 

Detailed test program to evaluate flotation gold/silver recovery and bioleach

 

 

treatment of refractory concentrate ahead of cyanidation

 

 

 

Skyline Johnny Mountain Gold

- 

Mill troubleshooting resulting in successful improvements to gold recoveries

Mine

 

and mill operation

British Columbia, Canada

- 

Contract supervision of mill operations

450 TPD Gravity/Flotation Gold Mill

- 

Mill modifications and construction

 

- 

On-shift operator training and supervision

 

- 

Optimization of metallurgy for gold-copper ore

 

- 

Installation of a modular spiral gravity gold recovery circuit

 

- 

Engineering and fabrication of a tandem jig module

 

- 

Engineering, procurement, installation and start-up of regrind circuit and

 

 

Falcon gravity concentrator

 

- 

Supervision of mill operations

 

- 

Decommissioning and close-out of mill and related equipment

 

- 

Mechanical assessment and capital and operating cost estimate for

 

 

reactivation of mill operation

 

 

 

Star Lake Gold Mine

- 

Conceptual mill design

Saskatchewan, Canada

- 

Order-of-magnitude cost estimates

 

 

 

Tartan Lake Gold Mine

- 

Mill troubleshooting resulting in successful improvements to gold recoveries

Manitoba, Canada

 

and operation

400 TPD

- 

Contract supervision of mill operations

Gravity/Flotation/Cyanidation/

- 

Mill modifications and construction

Merrill-Crowe Mill

- 

On-shift operator training and supervision

 

- 

Waste treatment assessments

 

- 

Technical assistance regarding legal matters

 

- 

Mill and equipment assessment and capital and operating cost estimates for

 

 

mill on retrofit to increase throughput and reactivate mill operation

 

 

 

Thiourea Gold Leaching

- 

Metallurgical and economic evaluation of a proprietary thiourea gold

USA

 

recovery process for refractory gold ores

 

 

 

Toodogone Project

- 

Heap leach assessment and testing

British Columbia, Canada

- 

Metallurgy review

 

 

 

Tower Lake Project

- 

Metallurgical review

Saskatchewan, Canada

 

 

 

 

 

Vat Gold Leaching

- 

Conceptual design

Saskatchewan, Canada

- 

Capital and operating cost estimate of vat leaching for gold recovery

 

 

 

Wedge/Weedy Lake Project

- 

Conceptual mill design

Saskatchewan, Canada

- 

Order-of-magnitude cost estimates

 

 

 


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