北京科技大学学报2011，Vol.33Issue(3)：328-333,6.
从电镀污泥中回收镍、铜和铬的工艺研究
Recycling process of nickel, copper and chromium from the electroplating sludge
郭学益 1石文堂 1李栋 1田庆华1
作者信息
- 1. 中南大学冶金科学与工程学院,长沙,410083
- 折叠
摘要
Abstract
The electroplating sludge was treated for the comprehensive recovery of copper, chromium and nickel with procedures including sulfuric acid leaching, copper precipitation, chromium removal by two-stage neutralization, and nickel carbonate concentrating. Various processing factors were studied and the optimum conditions were obtained as follows: 0. 5 h, 50℃ , and 0. 8 times of stoichiometric sulfuric acid addition for sulfuric acid leaching; 1 h, 85℃ , and 1.2 times of stoichiometric copper precipitator addition for copper precipitation; the two-stage chromium removal method decreases nickel loss in the precipitation process. More than 98％ of copper, 99％ of chromium and 94％ of nickel originally contained in the sludge were successfully recovered by using this process.关键词
电镀/污泥处理/金属回收/铜/铬/镍Key words
electroplating/ sludge disposal/ metal recovery/ copper/ chromium/ nickel分类
环境科学引用本文复制引用
郭学益,石文堂,李栋,田庆华..从电镀污泥中回收镍、铜和铬的工艺研究[J].北京科技大学学报,2011,33(3):328-333,6.
