CESL has developed hydrometallurgical processes for the production of copper and nickel cathode from their respective concentrates, the economic recovery of gold and silver from the residues, and the removal of copper from molybdenum.
CESL
CESL, one of Teck's technology centres, oversees the development of our proprietary hydrometallurgical technology. Based in Richmond, British Columbia, CESL offers a method for treating copper, copper-gold, nickel-copper, and nickel concentrates, especially those with complex challenges related to mineralogy and deleterious elements that inhibit conventional production and sale of concentrates.
CESL Process
Copper-Arsenic Processing
CESL has developed a process for treating high arsenic bearing copper-sulphide resources from mine-to-metal while producing non-hazardous arsenic bearing residues.
CESL Projects
The first commercial hydrometallurgical facility using CESL Technology was constructed by Vale in the Carajás region of Brazil in 2008.
Metallurgical Testing
CESL’s facilities have a substantial amount of hydrometallurgical equipment for the testing of various processes and flowsheets, including grinding, flotation, pressure leaching, solvent extraction, gravity concentration and electrowinning. In addition to equipment, CESL has its own analytical laboratory to support testing programs, an on-site maintenance and instrumentation team, and a robust safety program.
Recent Publications Copper - Arsenic
Teck CESL Receives Grant for Sustainable Refining Technology 0.16 MB
Download
A Sustainable Hydrometallurgical Process to Develop Copper Deposits Challenged with High Arsenic 1.61 MB
Download
Arsenic Stability and Characterization of CESL Process Residues 0.60 MB
Download
An Integrated Mine to Metal Approach to Develop High Arsenic Copper Deposits Using the CESL Process 0.62 MB
Download
Unlocking Value in Copper Arsenic Sulphide Resources with Copper-Arsenic CESL Technology 0.44 MB
Download
Developing Copper Arsenic Resources with CESL Technology – Com 2014 0.41 MB
Download
Environmental Benefits of the CESL Process for the Treatment of High-Arsenic Copper-Gold Concentrates – Hydroprocess 2017 0.51 MB
Download
Hydrometallurgical Considerations in Processing Arsenic-Rich Copper Concentrates – Hydroprocess 2015 0.55 MB
Download
Scorodite in the CESL Process for Copper-Arsenic Concentrates – Com 2016 0.45 MB
Download
Tackling Impurities in Copper Concentrates – ALTA 2015 0.63 MB
Download
Utilizing Cyanide Recovery Techniques in the CESL Gold-Silver Process – Alta 2017 1.29 MB
Download
Recent Publications Copper
Pyrite Leaching Behaviour under CESL Process Conditions 0.30 MB
Download
Reducing Fresh Water Use in the Production of Metals 0.72 MB
Download
Teck’s CESL Copper Process: A Commercial Ready Concentrate Leach Alternative 0.41 MB
Download
Corrosion Studies at Teck’s Hydrometallurgical Facility (CESL): Identification of an Alloy Substitute for Titanium in Certain Applications 0.37 MB
Download
Early Copper Product Results from Vale’s Hydrometallurgical CESL Refinery 3.95 MB
Download
Commissioning UHC: A Vale Copper Refinery Based on CESL Technology 2.01 MB
Download
The Role of Iron in the CESL Process 0.34 MB
Download
On-Site Processing vs. Sale of Copper Concentrates 0.13 MB
Download
CESL Copper Process—An Economic Alternative to Smelting 0.24 MB
Download
CESL Copper Process—Moving From Pilot Plant to Production Scale Operation 0.23 MB
Download
Recent Publications Nickel
Teck's CESL Nickel Process Advancing Towards a Commercial Ready Hydromet Solution for Low Grade Disseminated Nickel Sulphides 0.41 MB
Download
Unlocking Disseminated Nickel Sulphides using the CESL Nickel Process 0.24 MB
Download
A New Process for Cobalt - Nickel Separation 0.23 MB
Download
Nickel and Cobalt Recovery from a Bulk Copper-Nickel Concentrate Using the CESL Process 0.41 MB
Download
Nickel and Cobalt Recovery from Mesaba Concentrate 0.94 MB
Download
The Application of the CESL Nickel Process to Laterites 0.10 MB
Download
