前言几年来,用湿法从硫酸盐溶液中分离高纯镍和钴,做了很多的实验研究,但都没有获得成功。1970年日本矿业公司已着手研究从澳大利亚生产的混合硫化物中回收镍钴的一种新工艺。经过几年的小规模实验以后,日本矿业公司决定采用溶剂萃取法分离镍和钴,于1975年在日立冶炼厂的精炼车间进行生产,年产 Preface In recent years, many experiments have been done to separate high purity nickel and cobalt from sulphate solution by wet methods, but none have been successful. In 1970, Japanese mining companies began work on a new process for the recovery of nickel and cobalt from the mixed sulphides produced in Australia. After several years of small-scale experiments, the Japanese mining company decided to use solvent extraction to separate nickel and cobalt, which was produced at the refining plant of Hitachi Smelter in 1975 with an annual output