从贫化炉水淬渣中氨浸提铜试验研究  

Leaching of Copper From Water Quenched Pyrometallurgical Slag by Ammonia and Ammonium Carbonate Solution

作　　者：郭勇[1] 秦庆伟[1] 汤海波[1] 郑鑫[1] 徐艳玲[1] 毕凡[1] 廖广东 张亨峰 

机构地区：[1]武汉科技大学钢铁冶金及资源利用教育部重点实验室,湖北武汉430081 [2]黄石大江集团有限公司,湖北黄石435005

出　　处：《湿法冶金》2016年第4期320-323,共4页Hydrometallurgy of China

基　　金：2014年湖北省重点产业创新团队项目(鄂组通【2014】36号);钢铁冶金及资源利用教育部重点实验室开放基金项目(FMRU201206);湖北省新世纪高层次人才工程专项经费资助项目(鄂人社函【2011】763号)

摘　　要：研究了用氨水从贫化炉水淬渣中浸出铜。结果表明:水淬渣经振动研磨至粒度小于-0.147mm,在70℃下浸出4.0h,控制氨水质量浓度60g/L,液固体积质量比10mL∶1g,搅拌速度500r/min,碳酸铵添加量4g/10g铜渣,结果铜浸出率为45%,氨浸液中铜的硫化钠沉淀率为89%。方法简单易行,铜回收率较高。Recovery of copper from water quenched pyrometallurgical cleaning slag by ammonia leaching was studied.The results show that the maximum leaching rate of copper is 45% and precipitation rate of copper is 89% at the optimum conditions of 70 ℃,leaching time of 4hours,ammonia concentration of 60g/L,liquid-to-solid ratio of 10mL∶1g,stirring speed of 500r/min and ammonium carbonate addition of 40% to the slag.Copper is recoveried by leaching and followed precipitation.The process is simple,copper recovery efficiency is better.

关 键 词：水淬渣 氨水 浸出 铜 

分 类 号：TF811[冶金工程—有色金属冶金] X705[环境科学与工程—环境工程]