Zinc and Base Metals
SNC-Lavalin's on-going worldwide activities in the mining and processing of zinc dates back 40 years. Our specialists have engineered a large number of important developments and have played a major role in the industry's transition to electrolytic refining. More than 20 major zinc producers throughout the world have retained our services for the design and execution of new plants as well as of extensions and retrofits to existing facilities. Overall, we have built seven new zinc smelters, and built up a large pool of in-house expertise.
Process Technologies
We offer extensive process plant experience covering the full range of recovery techniques and unit processes from ore beneficiation to zinc metal production.
Expertise
- Flotation
- Roasting
- Heap leaching
- Solvent extraction
- Electrowinning and casting
- Pressure oxidation leaching and high pressure acid leaching
- Iron rejection
- Solution purification for zinc electrolyte
- Effluent treatment and pollution control
Projects
Contacts
Valleyfield Plant Expansion Project
Canadian Electrolytic Zinc Ltd. (CEZinc) awarded us the contract to perform cost estimates, front-end, basic and detailed engineering, as well as construction management assistance to increase the production capacity of their Valleyfield Plant from 230,000 to 250,000 tpa.Services: Basic and Detailed Engineering
Country : Canada
Gamsberg Zinc Project
The project consisted of a leach area for a greenfield zinc refinery at the existing Gamsberg Mine in South Africa. The owner, Anglo American Corporation, was considering the production of refined zinc from the Gamsberg concentrate.Services: Feasibility
Country : South Africa
Zinc Plant Modernization and Expansion Project
We carried out both the Pre-Feasibility and Feasibility Studies, and were subesquently awarded a contract by Hudson Bay Mining and Smelting Co. (HBM&S) to provide basic engineering, detailed engineering, procurement and construction management for the brownfield expansion of its zinc plant in Flin Flon, Manitoba by 15% to 114,000 tpa cast metal.Services: Pre-Feasibility, Feasibility, EPCM
Country : Canada
Skorpion Zinc Project
We were awarded a joint venture contract to complete a 150,000 tpa zinc mine using a new leach technology followed by SX/EW and refining. Located in a remote area of the Namibian desert, the project was finished in 2002 on budget and schedule with more than six million person hours without a single lost-time accident. The mine is expected to contribute 4% to Namibia's GDP over its 15 year mine life.Services: EPCM
Country : Namibia
Valleyfield Plant Expansion Project
Canadian Electrolytic Zinc Ltd. (CEZinc) awarded us the contract to perform cost estimates, front-end, basic and detailed engineering, as well as construction management assistance to increase the production capacity of their Valleyfield Plant from 230,000 to 250,000 tpa.Services: Basic and Detailed Engineering
Gamsberg Zinc Project
The project consisted of a leach area for a greenfield zinc refinery at the existing Gamsberg Mine in South Africa. The owner, Anglo American Corporation, was considering the production of refined zinc from the Gamsberg concentrate.Services: Feasibility
Zinc Plant Modernization and Expansion Project
We carried out both the Pre-Feasibility and Feasibility Studies, and were subesquently awarded a contract by Hudson Bay Mining and Smelting Co. (HBM&S) to provide basic engineering, detailed engineering, procurement and construction management for the brownfield expansion of its zinc plant in Flin Flon, Manitoba by 15% to 114,000 tpa cast metal.Services: Pre-Feasibility, Feasibility, EPCM
Skorpion Zinc Project
We were awarded a joint venture contract to complete a 150,000 tpa zinc mine using a new leach technology followed by SX/EW and refining. Located in a remote area of the Namibian desert, the project was finished in 2002 on budget and schedule with more than six million person hours without a single lost-time accident. The mine is expected to contribute 4% to Namibia's GDP over its 15 year mine life.Services: EPCM