镍冶炼转炉烟灰碱浸脱砷试验研究  

Experimental Study on Alkali Leaching of Arsenic from Converter Dust

作　　者：郑军福[1] 孙留根[2] 于英东 杨柳青[1] 董德千[1] 

机构地区：[1]金川集团股份有限公司,甘肃金昌737100 [2]北京矿冶研究总院,北京100160

出　　处：《中国资源综合利用》2014年第4期21-23,共3页China Resources Comprehensive Utilization

基　　金：含砷金精矿还原焙烧过程检测应用开发(2012YQ22011905)

摘　　要：采用氢氧化钠碱浸出的方法除去转炉烟灰中的砷。通过单因素试验,确定出最佳的砷浸出工艺条件。试验结果显示,液固比为7∶1,氢氧化钠浓度2 mol/L,搅拌浸出2 h,浸出温度80℃,砷浸出率达到95%以上,同时镍的浸出率可小于0.5%,可实现烟灰除砷的目的。In this article, the method of sodium hydroxide leaching was adopted to remove arsenic in converter dust. Through single factor experiment, the best process conditions of arsenic leaching were determined. The results indicated that leaching rate of arsenic was more than 95% and that of nickel was less than 0.5% at the condition of the liquid/solid ratio of 7：1 and the sodium hydroxid concentration of 2 mol/L at 80 ℃ for 2 hour.

关 键 词：转炉烟灰 除砷 碱浸 浸出率 

分 类 号：TF803.21[冶金工程—有色金属冶金] X756[环境科学与工程—环境工程]