摘要
研究了用废Ni MH电池正极材料制备电子级硫酸镍的浸出、净化和结晶工艺。浸出的最佳工艺条件为浸出时间30min、硫酸用量1.5倍理论量、搅拌强度600r min、液固比5∶1,在此条件下,镍的浸出率大于98%,镍的总收率大于93.1%,所得产品NiSO4·7H2O达到电子级硫酸镍的质量标准。
A study is made on the leaching, purifying and crystallizing processes for preparation of electron-level nickel sulphate using positive electrodes of spent Ni-MH batteries as raw materials. The optimum process conditions are as follows： leaching time of 30 min, 1.5 times theretical consumption of H2 SO4, agitating strength of 600 r/min, and a L/S ratio of 1 ： 5. Under the above conditions, the leaching ratio of nickel is above 98 %, the overall nickel recovery is above 93.1% and NiSO4·7H2O meets the quality standards of electron-level nickel sulphate.
出处
《矿冶工程》
CAS
CSCD
北大核心
2005年第4期46-49,53,共5页
Mining and Metallurgical Engineering
关键词
Ni-NH电池
硫酸镍
回收
浸出
净化
Ni-MH battery
nickel sulphate
recovery
leaching
purifying
作者简介
夏煜（1976-），男，湖南澧县人，硕士研究生，主要从事有色冶金研究。
