摘要
制备高纯电解钴的冶金工艺过程主要包括萃取法、离子交换法、电解精炼法等,这些方法在提纯方面发挥着不同的作用。萃取法对大多数金属离子有较好的效果,但对微量的Ni、Cu金属离子的分离效果较差;离子交换法对性质相近的元素有较好的分离效果;多次电解精炼可以进一步降低杂质含量;熔盐电解对设备的要求较高。在总结上述提纯工艺的基础上,提出联合采用萃取法或离子交换法除去钴溶液中的大部分杂质,再采用电解进一步提纯,制备得到高纯度的电解钴产品。
The various metallurgical process of preparing high purity electrolytic cobalt,mainly including extraction,ion exchange,electrolysis refining,these methods play different roles in the removal of impurities.Extraction can remove most of the metal ions,but with a poor effect for trace Ni and Cu;Ion exchange is effective for separating the elements with similar properties;Electrolytic refining repeatedly can further reduce the impurity;Molten-salt electrolysis require higher equipment.On the basis of summarizing the above purification methods,it is proposed that the most impurities can be removed by combined extraction or ion exchange in the cobalt solution,and then further purified by electrolysis refining,so the high purity electrolytic cobalt products can be prepared.
作者
崔佳
刘冬青
刘丹
CUI Jia;LIU Dongqing;LIU Dan(Grikin Advanced Materials Co.,Ltd.,Beijing 102200;The High Purity Metal Sputtering Target Engineering Technology Research Center in Beijing,Beijing 102200)
出处
《生物化工》
2021年第1期134-136,共3页
Biological Chemical Engineering
基金
北京市科学技术委员会资助(Z201100004320015)。
关键词
高纯电解钴
萃取法
离子交换
电解精炼
high-purity electrolytic cobalt
extraction
ion-exchange method
electrolysis refining
