从含锗氧化锌烟尘中提取锌锗
发布时间：2019-07-21 06:51
【摘要】：以氧化锌烟尘为原料、硫酸为浸出剂,研究了含锗氧化锌烟尘的浸出过程。最佳工艺条件为:烟尘用量50g、硫酸用量20mL、反应温度80℃、反应时间2h、液固比4妣1,在该条件下,锌、锗的浸出率分别为89.12%和89.75%。将浸出液的pH调至2.5,在沉淀温度60℃,搅拌时间30min的条件下,采用浸出液中锗量40倍的单宁酸进行沉锗,锗的沉淀率达97.2%,得到含锗0.809%的单宁渣,该沉淀渣在600℃灼烧1h后得到品位为14.55%的锗精矿。沉锗后液可返回锌生产。
[Abstract]:The leaching process of zinc oxide dust containing germanium was studied by using zinc oxide dust as raw material and sulfuric acid as leaching agent. The optimum technological conditions are as follows: dust dosage 50 g, sulfuric acid dosage 20 mL, reaction temperature 80 鈩，
本文编号：2516989
[Abstract]:The leaching process of zinc oxide dust containing germanium was studied by using zinc oxide dust as raw material and sulfuric acid as leaching agent. The optimum technological conditions are as follows: dust dosage 50 g, sulfuric acid dosage 20 mL, reaction temperature 80 鈩，
本文编号：2516989
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