通过系统的沉淀剂筛选试验,确定了碳酸氢铵是适宜的非草酸盐沉钴剂,采用沉钴剂反加法再辅以添加适量的分散剂和絮凝剂,可自硫酸钴溶液中以高于97%的沉钴率沉出含钴沉淀产物,沉淀产物不含氯根,其煅烧产物疏松、理化性能优异,符合用户的质量要求。沉淀工序的加工成本可降低~50%。 Through the system of precipitant screening test, ammonium bicarbonate is determined to be suitable for non-oxalate cobalt-sinking agent, the use of cobalt-cobalt counterexperiment supplemented with an appropriate amount of dispersant and flocculant can be high from cobalt sulfate solution to high At 97% cobalt content, cobalt precipitates precipitate, and the precipitates do not contain chloride. The calcined products are loose and have excellent physical and chemical properties, meeting the user’s quality requirements. The processing cost of the precipitation process can be reduced by ~ 50%.