化工环保2017，Vol.37Issue(3)：346-351,6.DOI:10.3969/j.issn.1006-1878.2017.03.017
从废甲醇合成催化剂中回收铜锌
Recovery of copper and zinc from spent catalyst for methanol synthesis
摘要
Abstract
Copper and zinc were recovered from the spent RK-05 catalyst for methanol synthesis by baking,leaching and refining.The optimum parameters of baking process were obtained by orthogonal experiment,such as:spent catalyst size 100 mesh,baking temperature 950 ℃ and baking time 60 min.The optimum leaching conditions were as follows:spent catalyst amount about 4 g/L,leaching temperature 75 ℃,volume ratio of actual amount to theoretical amount of leaching agent 2.0-3.0,leaching agent concentration 4 mol/L and leaching time 10 min.The optimum conditions for CuO refining were as follows:mass ratio of zinc particle to filter slag 1.00,reaction time 3 h,baking temperature 450 ℃ and baking time 4 h.The optimum conditions for ZnO preparation were as follows:baking temperature 800 ℃ and baking time 60 min.The purity of the recovered product CuO was 99.1％,which met the premium grade of national standard of GB/T674-2003.The purity of the recovered product CuO was 99.6％,which met the first grade of national standard of GB/T3185-1992.关键词
废甲醇合成催化剂/煅烧/浸取/精制/氧化铜/氧化锌Key words
spent methanol synthesis catalyst/baking/leaching/refining/CuO/ZnO分类
资源环境引用本文复制引用
王颖洁,李平,王彦飞,蔡志国..从废甲醇合成催化剂中回收铜锌[J].化工环保,2017,37(3):346-351,6.基金项目
宁夏高等学校科学研究项目(NGY2015047). （NGY2015047）
