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 %. Carried out the “hot acid leaching - iron arsenic zinc refining process of germanium and silver enrichment and recovery,” the laboratory expansion test, in 10 cycles, the process flow, with jarosite iron instead of the usual The loss of germanium in the slag was reduced to less than 50% with the addition of sodium or ammonium iron sulfate, and both germanium and silver were enriched in high acid leaching residue with grades of 0 0 32 5% and 0 16 2%, respectively.