氧化钴生产过程的非草酸盐沉钴工艺研究之二 碳铵(反加)法自硫酸钴溶液中沉钴  

Study on Non-oxalate Cobalt Deposition for Preparation of Cobalt Oxide Ⅱ. Deposition from Cobalt Sulphate Solution by Reverse Adding of Ammonium Bicarbonate

作　　者：刁微之 徐远志 代云 左以专 

机构地区：[1]昆明冶研新材料股份公司,云南昆明650031

出　　处：《云南冶金》2007年第5期29-33,共5页Yunnan Metallurgy

摘　　要：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％。Ammonium bicarbonate has been selected as suitable non - oxalate agent for cobalt deposition throught systematic tests of precipitator choice. 97% of cobalt in the solution of cobalt sulphate can be settled into sediment by reverse adding of cobalt deposition agent and adding of propre amount of dispersant and flocculant. The sediment has no chlorine radicel and its calcined product is loose, having good physical and chemical property, and fitting with the qulity requirement of customers. The cost of deposition can be decreased by ～50%.

关 键 词：氧化钴制备 硫酸钴溶液 碳酸氢铵沉钴 

分 类 号：TF816[冶金工程—有色金属冶金]