Grade Recovery Strategies

EXPERTISE PORTFOLIO CONTACT

Expertise

Experienced in operation of complex base metal concentrators.
Assisting in evaluation of plant performance and improvement of existing operations and plant start-up.
Involved in a wide variety of base and precious metal and industrial mineral deposits, including laboratory work, pilot plant work and plant operations.
Experience in flowsheet design and modification on a variety of base metal deposits.
Vast experience in the lab involved in mineral processing, mostly flotation, but also many other techniques to facilitate flowsheet development.
Vast experience on a wide variety of pilot plant set up and operations, both on site and at Lakefield Research Limited.

2003 - 2009 SGS Lakefield Research Lakefield, Ontario, Canada

2002 - 2003 North American Metals Lac des Iles Mill Thunder Bay, Ontario, Canada

Various quality control floatation test work
Metallurgical accounting, concentrate shipment scheduling and inventory
Assisting in operation of a 15 kilotonne per day PGM Grinding and flotation operation
Assisting in training of operations personal in grinding and flotation
Troubleshooting and problem solving in a team atmosphere
On stream analyser calibration
Data collection and compilation for the management team

1986 - 2002 Lakefield Research Ltd Lakefield, Ontario, Canada Metallurgical laboratory technologist

Performing various laboratory-scale mineral processing and hydrometallurgical testwork and completion of necessary test reports
Carrying out processes such as flotation, magnetic separation, electromagnetic separation, gravity separation, various mineral leaching processes, and size analysis.

1986 - 1986 Ore Sorters of Canada Ltd Peterborough, Ontario, Canada Test Officer

Operating various preconcentration mining machines; i.e. photometric sorter, conductivity/magnetic response sorter
Mechanical and electronic processor adjustments to optimize the performance of the equipment
Identifying most types of base and precious metal mineralization and industrial minerals
Designing test programs that will satisfy the objectives outlined by the client
Compiling testwork reports, analysis sheets, flow diagrams and a variety of metallurgical calculations

1985 - 1986 Crone Geophysics Ltd. Laronge, Saskatchewan, Canada

Operation of deep electromagnetics unit, datalogger operation, field crew leader, compassing, map reading, air photo interpretation, camp set-ups
Plotting of cotour maps, psuedo sections, computer model comparisons

1984 - 1985 Ore Sorters of Canada Ltd. Peterborough, Ontario, Canada Test Officer

1984 MPH Consulting Ltd. Timmins / Kenora, Ontario, Canada Geophysical Technician

1983 Ontario Geological Survey (Mineral Deposits Section) Kaladar, Ontario, Canada Geological field assistant

Doe Run – Missouri, USA (Cu, Pb, Zn, Co)
San Martin – Mexico (Cu, Pb, Zn)
Breakwater Resources – Tunisia, Africa (Pb, Zn)
Minas Conga – South America (Cu, Au)
Breakwater Resources (El Toqui) – Chile (Pb, Zn, Au)
Grupo Paranapanema – Brazil (REO plant)
Kennecott Corporation – Greens Creek Mine – Alaska (Pb, Zn, Au)
Anvil Range – Faro Yukon Concentrator (Pb/Zn)
Aberfoyle Resources Ltd – Hellyer Copper/Lead/Zinc Concentrator – Tasmania (Cu, Pb, Zn)
Falconbridge Ltd – Strathcona Copper/Nickel Concentrator – Ontario, Canada (Cu, Ni)
Falconbridge Ltd – Kidd Creek Copper/Zinc Concentrator – Ontario, Canada (Cu, Zn)
Echo Bay Mines – Alaska, USA – (Au)
Chuquicamata – Copper Concentrator – Chile (Cu)
Escondida – Copper Concentrator – Chile (Cu)
East-West Caribou – Copper/Lead/Zinc Concentrator – New Brunswick, Canada (Cu, Pb, Zn)
Breakwater Resources – Caribou Copper/Lead/Zinc Concentrator – New Brunswick, Canada (Cu, Pb, Zn)
Minnova Incorporated – Winston Lake Copper/Zinc Concentrator – Ontario, Canada (Cu, Zn)

Dan G. Lang
Fire Rte 71B
Trent Lakes, ON Canada
K0L 1J0
(705) 772-8019
dan@graderecovery.ca

EXPERTISE PORTFOLIO CONTACT