摘要
进行了“热酸浸出—铁矾法炼锌工艺中锗和银的富集和回收”的实验室扩大试验 ,在 10个循环试验中 ,工艺流程畅通 ,以黄钾铁矾沉铁代替通常的钠或铵铁矾沉铁使锗在矾渣中的损失减少到 5 0 %以下 ,锗和银均富集于高酸浸出渣中 ,其品位分别为 0 0 32 5 %和 0 16 2 %.
The bench-scale experiment was conducted for enrichment and recovery of germanium in hot acid leaching and zinc-smelting with iron vitriol method. The flowsheet is smoothly during 10 periods of cyclic test. The loss of Ge in halotrichite residue was less than 5.0%, precipitating iron by using ferric potassium alum instead of common Na or ammonium alum. Ge and Ag were all enriched in the high acid leaching residue, and their grades are 0.0325% and 0.162%, respectively.
出处
《广东有色金属学报》
2002年第B09期21-28,共8页
Journal of Guangdong Non-Ferrous Metals
关键词
酸浸
铁矾法
富集
锗
炼锌
acid leaching
iron vitriol method
up grade
germanium
