Method for deeply purifying impurity nickel in cobalt sulfate electrolyte

The invention relates to a method for deeply purifying impurity nickel in cobalt sulfate electrolyte. According to the invention, chelate M4195 UPS resin is used; the chelate M4195 UPS resin and a cobalt sulfate solution are mixed and stirred at room temperature, ions are adsorbed by the chelate M4195 UPS resin, the removal rate of nickel can reach 80% or above under the condition that the concentration of cobalt ions is high, the removal effect is excellent, operation is easy, environment friendliness is achieved, the regeneration capacity is high, and the chelate M4195 UPS resin can be usedfor a long time. 本发明涉及一种深度净化硫酸钴电解液中杂质镍的方法。本发明中所用的螯合M4195 UPS树脂，在常温下对螯合M4195 UPS树脂与硫酸钴溶液混合进行搅拌，使离子与其吸附，对于在高浓度的钴离子浓度的情况下，对镍的去除率能达到80％以上，去除效果优异，且操作简单，绿色环保，再生能力强可长久使用。