摘要
本文报告了用重铬酸钠作氧化剂,在酸性介质中浸出包裹金的毒砂和黄铁矿,并与常压催化浸出法作了比较。重铬酸钠浸出法的脱砷率可达95％以上,浸出后液沉淀除砷、铁后,经再生可返回浸出。
In this paper, the arsenopyrite and pyrite which enclave gold in arsenical refractory gold concentrate are leached by sodium dichromate in acidic medium.The dearsenication of this method is over 95%.After As(Ⅴ) and Fe(Ⅲ) in the leach solution are removed by precipitation,sodium dichromate in the solution can be regenerated and recycled to leaching circuit.
出处
《黄金》
CAS
北大核心
1992年第12期33-37,共5页
Gold
基金
国家自然科学基金资助
关键词
重铬酸钠
难处理金矿
浸出
sodium dichromate
refractory gold ore
leaching
