我厂镍电解在氯化镍溶液提纯过程中,用脂肪胺萃取除钴后,负载有机相用食盐水反萃取,得到含氯化钠的氯化钴溶液,此溶液用碱粉沉淀后得钴渣。 所得钴渣含水约50％,其余化学组成大致为(％):Co20～30,Ni8～12,Fe0.5～5,Cu0.1～1。由于长期在空气中堆放,其中的钴大部分以Co Nickel electrolysis in our factory in the nickel chloride solution purification process, the use of fatty amine extraction of cobalt, the organic phase loaded with brine back extraction, sodium chloride containing cobalt chloride solution, this solution was precipitated with alkali cobalt Slag. The resulting cobalt slag has a water content of about 50%, and the remaining chemical composition is roughly (%): Co20-30, Ni8-12, Fe0.5-5, Cu0.1-1. Due to long-term accumulation in the air, most of the cobalt in Co