苏联一些镍厂采用不同的流程净除硫酸盐氯化物镍电解液中的杂质。例如,在诺列尔斯克联合企业的镍电解车间,首先是净液除铜,然后一起除铁和钴;在《北镍》,先净液除铁,然后除铜,最后除钴。《南镍》的净化流程是一段同时析出铁-铜-钴渣,滤渣经三次酸性浆 Some nickel plants in the Soviet Union use different processes to purify impurities in the sulfate chloride nickel electrolyte. For example, in the Noelsk conglomerate’s nickel electrolysis plant, the first is a net solution of copper and then the other is iron and cobalt; in “northern nickel”, the first solution is iron and then the copper is removed and finally the cobalt is removed. “South Nickel” purification process is a simultaneous precipitation of iron - copper - cobalt slag, residue by the three acid slurry