镍钴锰三元素氢氧化物废料循环回收的工艺研究  

Study on Recycling Technology of Nickel-cobalt-manganese Ternary Precursor

作　　者：冯焕村 李文津 文定强 吴理觉 

机构地区：[1]广东佳纳能源科技有限公司,广东清远513056

出　　处：《广东化工》2017年第14期44-46,共3页Guangdong Chemical Industry

摘　　要：实验采用了还原浸出的循环回收处理方法,从镍钴锰三元素氢氧化物废料中重新回收钴、镍和锰,可直接用于重新制备镍钴锰三元素氢氧化物产品,实现废料的循环回收利用。本文研究了还原回收镍钴锰三元素氢氧化物废料的还原剂种类、用量比、反应条件等影响因素对镍、钴和锰元素的回收率的影响。实验结果表明:工艺最佳条件是水合肼是回收镍钴锰三元素氢氧化物废料的最佳还原剂,还原剂用量为1.4倍理论量,反应初始酸度为4 mol·L^(-1),反应温度为50℃,反应液固比为4︰1,反应时间为90 min。钴、镍和锰的回收率分别可达到99.31%、99.75%和99.80%。本工艺简单可行,回收率高,因此适合应用于工业生产。The experiment adopts the method of recycling with reduction leaching, recovery of cobalt; nickel and manganese from nickel-cobalt-manganese ternary precursor waste for the preparation of the nickel cobalt manganese ternary precursor product and realize the recycling utilization of waste materials. The influence of the factors such as reducing agent, dosage ratio and reaction conditions on the recovery of nickel, cobalt and manganese was studied. The experimental results show that the optimum process conditions for the recovery of nickel-cobalt- manganese ternary precursor waste the best reducing agent is hydrogen peroxide, reducing agent dosage is 1.4 times of the theoretical amount, the initial acidity of reaction was 4 mol L-1, reaction temperature 50℃, reaction ratio of liquid to solid 4 ： l, the reaction time is 90 min.The recoveries of cobalt, nickel and manganese were 99.31%, 99.75 % and 99.80 %, respectively. The process is simple and feasible, the recovery rate is high, and so the process is suitable for industrial production.

关 键 词：还原浸出 镍钴锰三元素氢氧化物废料 工业生产 

分 类 号：TQ[化学工程]