Selective removal of nickel from iron substrate by non-cyanide strippers

作     者：李德良 吴晓芙 王淀佐 J.A.Finch 

作者机构：School of Resource and Environment School of Resources Processing and Bioengineering Department of Mining and Metallurgical Engineering 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2004年第14卷第3期

页      面：599-602页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：ProjectsupportedbyMENDFundofCanada 

主　　题：环境友好技术 清洁生产 镍 选择性去除 非氰化萃取器 环境工程 

摘      要：A novel nickel stripper using ammonia as the key component was developed to substitute cyanide for removing nickel film from iron substrates. Its compositions are: ammonia 150 g/L, hydrogen peroxide 50 g/L, ammonium chloride 100 g/L, EDTA 7.5 g/L, copper chloride 15 g/L and glucopyrone 1.2 g/L. The optimum operating conditions are: pH 9.511, temperature 4050 ℃ and stripping time 1 h. It shows many advantages over the traditional cyanide stripper including no toxicity, mild operation, lower cost, larger holding capacity, faster stripping rate and good protection for the base metal, and can meet the technical requirements in industry.