摘要
本文研究了从高锌烟灰中提取锌及有价金属铟的富集,考察了在不同工艺参数对浸出的影响,得到优化的浸出条 件。同时在回收铟等有价金属时,还注意到环保问题,有效地提高酸的使用率,减少污染。整个工艺过程基本不产生废渣、废液、和 废气。试验表明:pH=5.2时,Zn的浸出率达81％,铟在终酸度为53.65g／1,浸出率达92％。
<abstract>is paper studies the enrichment of Zinc and valuable Indium form ash, and studies the technics parameters about soaking efficiency, finds out the optimum conditions, we also adopt contra-soaking technics in acid solution, improving the using efficiency of the acid, reducing the pollution. And no waste residue, no exhaust gas, no waste water. pH=5.2, Zinc soaking efficiency is 81% and in the condition of the acidity 53.65 g/lIndium soaking efficiency is 92%.
出处
《广东化工》
CAS
2004年第4期30-31,21,共3页
Guangdong Chemical Industry
关键词
高锌烟灰
提取
锌
富集铟
碳酸锌
中性浸出
酸性浸出
返浸
<keyword>h contained Zinc, Indium, Zinc Carbonate, soaking in neutral solution, soaking in acid solution, contra-soak.
