Solvent Extraction Process of Nickel Sulfate for Battery Materials

Sumitomo MetalMetals Mining, Co, Ltd. (SMM) has a globally unique and original model based on collaboration among three businesses of the mineral resources, smelting, refining, and materialsMaterials. It can provide a comprehensive in-house nickelNickel supply chain covering everything from securing nickelNickel mineral ore raw materialMaterials to the production of battery materialsBattery materials for EVs. Niihama NickelNickel Refinery, own by SMM has a variety of processesProcess including solvent extractionSolvent extraction which is main processProcess for producing nickel sulfateNickel sulfate used for battery materialsBattery materials. This solvent extractionSolvent extraction processProcess, which is called “Crowding organic bypass—solvent extractionSolvent extraction (COB-SX),” is unique and effective for not only nickelNickel and cobaltCobalt separation, but also nickelNickel and other impurities. This report shows some improvements about mainly solvent extractionSolvent extraction processProcess such as removal of impurities and separation of organic and aqueous phase.