CESL’s facilities have a substantial amount of hydrometallurgical equipment and experience for the testing of various processes and flowsheets. Furthermore, CESL has its own analytical laboratory to support testing programs, an on-site maintenance and instrumentation team, and a world-class safety program. The variety and scale of installed equipment and the extensive experience allows CESL to manage various hydrometallurgical test programs that may be outside of the CESL Process conditions and operating parameters. This flexibility allows CESL to work on internal or client projects by technically evaluating new business opportunities, improving existing operations and developing new technologies. CESL’s staff and facilities are available to meet any hydrometallurgical project’s testing needs.
The facilities at CESL offer three scales of testwork: bench, pilot or demonstration. CESL mitigates the technical risk of hydrometallurgical projects by applying a staged approach to process development supported by industry standard geochemical, mineralogical and metallurgical analytical capabilities.
In the development of technologies, CESL has worked with industry clients using various business arrangements. In general, a project is defined through bench testwork, followed by more detailed and integrated testing, including pilot campaigns once optimum process conditions are identified. Pilot testwork generally runs continuously on a range of concentrates or ores to demonstrate the flexibility of the operating conditions over a period of time to prove the process robustness and produce sufficient finished product and residue for market and environmental stability testing respectively.
Pilot and demonstration operations provide extensive metallurgical data (flowsheet and mass balance) to ensure optimal operations are achieved and sufficient data is collected in support of future engineering studies. Flowsheet design and operations are managed by a technical team which includes engineers, scientists, and technicians with significant experience in hydrometallurgical processing including pressure leaching, solid-liquid separation, solvent extraction and electrowinning.