湿法冶金2026，Vol.45Issue(1)：31-38,8.DOI:10.13355/j.cnki.sfyj.2026.01.005
富锗锌精矿协同浸出锌锗工艺研究
Synergistic Leaching of Zinc and Germanium from Germanium-rich Zinc Concentrate
摘要
Abstract
The leaching of zinc and germanium from germanium-rich zinc concentrate by oxygen pressure leaching process was studied.The effects of key factors such as the initial acidity of sulfuric acid,reaction temperature,leaching time,oxygen partial pressure,sodium lignosulfonate addition amount,liquid volume to solid mass ratio,and stirring speed on the leaching rates of zinc and germanium were systematically investigated.The optimal process conditions for oxygen pressure leaching are determined through single-factor experiments as follows:leaching temperature is 160 ℃,leaching time is 150 min,initial acidity of sulfuric acid is 160 g/L,partial pressure of oxygen is 1.2 MPa,addition amount of sodium lignosulfonate is 1 g,liquid volume to solid mass ratio is 8/1,and stirring speed is 600 r/min.Under the conditions,the germanium leaching rate reaches 94.86％and the zinc leaching rate reaches 99 98％.Compared with the traditional atmospheric pressure leaching,the optimized oxygen pressure process can increase the germanium leaching rate by more than 15％,shorten the leaching time by 40％,and also avoid the emission of high-concentration H2S gas,reducing environmental pollution and providing a technical reference for the comprehensive utilization of valuable elements in zinc concentrate.关键词
富锗锌精矿/氧压浸出/锌/锗/硫酸Key words
germanium-rich zinc concentrate/oxygen pressure leaching/zinc/germanium/sulfuric acid分类
矿业与冶金引用本文复制引用
俸智超,庞沛彦,蒋学先,何贵香,周街荣,李中林,李义兵..富锗锌精矿协同浸出锌锗工艺研究[J].湿法冶金,2026,45(1):31-38,8.基金项目
广西自然科学基金(2025GXNSFAA069249) （2025GXNSFAA069249）
中央引导地方科技发展资金项目(桂科ZY24212040). （桂科ZY24212040）
