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HomeMiningMetallurgy & Process DesignCyanidation TechnologiesCyanide LeachingCarbon & Resin Technologies for Gold Recovery
Carbon has been traditionally used to recover gold from cyanide leachates, but recent technological advances have resulted in the use of resins as a highly efficient and cost-effective method of gold recovery. SGS has the expertise to help you develop a gold flowsheet that optimizes gold extraction, gold recovery with reasonable operational costs and environmental sustainability.
SGS project managers can work with you to develop an effective flowsheet for your gold operation. Starting at the scoping or bench scale, we will design and demonstrate a testing program that will define and optimize the crucial gold recovery parameters including mineralogy, kinetics and chemical constraints.
Whether your final flowsheet uses carbon or resin technologies, the data gathered by SGS will enable you to make important operational decisions and provide capex and opex information for your feasibility study.
SGS metallurgists developed and continue to improve on these cost-effective, time-tested and proven processes. In each, activated carbon is used to extract gold from the cyanide leach solution. Such a carbon recovery system offers high recovery rates and lower capital and operating costs. These carbon recovery techniques include:
In recent years, resin is replacing carbon as the gold recovery substrate of choice. SGS is the world leader in the development of this technology. The process used in resin recovery is similar to carbon, but the gold is adsorbed onto solid spherical polystyrene resin beads rather than activated carbon grains.
Resin recovery offers all the advantages of carbon recovery, with some additional benefits:
Contact SGS early in the planning stage of your gold project. Our robust technology and globally-recognized technical expertise can give you the information you need for an efficient and cost-effective gold flowsheet for your operations.