某公司钴精炼工艺技术改进  

Improvements on the Cobalt Refining Process of a Plant

作　　者：钟清慎 贺秀珍 ZHONG Qing-shen;HE Xiu-zhen

机构地区：[1]金川集团铜业有限公司,甘肃金昌737100 [2]镍钴资源综合利用国家重点实验室,甘肃金昌737100

出　　处：《有色冶金节能》2022年第4期16-22,共7页Energy Saving of Nonferrous Metallurgy

基　　金：金川集团“十一五”至“十三五”重大科技攻关及产业项目。

摘　　要：概述了钴精炼工艺现状,分析了某企业钴精炼过程中复杂钴原料高效浸出、溶液脱硅、硫酸钙结晶、萃取净化、镍钴萃取高效分离、深度除钙镁、高品质氯化钴制备、合成系四氧化三钴前躯体硝酸钴溶液转型生产、钴电积阳极液深度脱氯,以及氯化钴溶液深度净化等钴精炼技术难题,并提出了相应的解决方法。The article first provided an overview of the current cobalt refining process of the plant,and then discussed various technical problems that exist in different unit operations:high-efficiency leaching of complex raw material,solvent silicon removal,calcium sulphate crystallization,extraction purification,Ni&Co high-efficiency separation,intensified Ca&Mg removal,high-quality cobalt chloride preparation,conversion production of cobalt nitrate(as precursor to synthetic cobaltosic oxide)solution,intensified chloride removal for the anodic solution of cobalt electrodeposition,and intensified purification of cobalt chloride solution,and finally proposed solutions accordingly.

关 键 词：钴精炼工艺 高品质钴盐 正极材料前躯体 深度净化 三元锂电池 技术难题 

分 类 号：TF815[冶金工程—有色金属冶金]