The Energy Systems division conducts applied research to strengthen the economy, protect the environment, and enable energy independence and national security. Chemistry of gold extraction pdf is a leader in solvent extraction and electrowinning. We work with your process development team from the bench testing to continuous piloting of your SX-EW recovery operation.
SGS is a world leader in solvent extraction and electrowinning. We work with you develop the SX-EW bench tests, solvent extraction piloting and flowsheets that enable you to recover maximum pay metal while meeting environmental, health and safety regulations. SGS metallurgists have the expertise and experience to develop the process parameters that yield maximum recovery. Solvent extraction is used to concentrate materials in an organic solution, while electrowinning is used to recover these pay elements. The two procedures are often conducted together. While electrowinning can be used with other processes, it is always used after solvent extraction. Many elements can be extracted from aqueous metal-rich leachate solutions and concentrated into an organic solvent.
The pay elements are then removed from the organic solution by electrowinning. The resulting high purity metal plate is then directly sold. SGS metallurgical experts can recover a wide range of metals from leach liquors and other solutions. SGS custom designs pilot plants to prove flowsheets. We provide pilot design and testing services. Our solvent extraction equipment includes mixer-settlers, columns, contactors, coalescers, reciprocating plates and contacting units. As well, we have electrowinning cells, power supplies and electrode materials for use as stand-alone electrowinning units or with SX or similar circuits.