还原-中和沉淀-低酸浸出方法富集低浓度含锗浸出液中的锗
Enrichment of Germanium in Low Concentration Germanium Containing Leaching Solution by Reduction-Neutralization Precipitation-Low Acid Leaching Method
付维琴 1刘俊场 1邹维 1牟兴兵 1杨睿潇 1王坤 1乔子棽1
作者信息
- 1. 昆明冶金研究院有限公司,昆明 650503
- 折叠
摘要
采用"还原-中和沉淀-低酸浸出"方法从低浓度含锗浸出液中高效富集锗,研究了还原中和沉淀和低酸浸出过程主要影响因素对锗分离富集的影响.结果表明,在硫化锌精矿用量为 2g/L、氧化锌烟尘用量为 19 g/L、反应温度为 80℃、还原时间为20 min、中和时间为 240 min的条件下,锗沉淀率可达 97.24％;在初始硫酸浓度为 165 g/L、液固体积质量比为 4 mL/g、浸出温度为 60℃、浸出时间为 60 min的条件下,锗浸出率可达 98.78％.
Abstract
The method of reduction-neutralization precipitation-low acid leaching was used to efficiently enrich germanium from low concentration germanium leaching solution.The main influencing factors of reduction neutralization precipitation and low acid leaching on germanium separation and enrichment were studied.The results showed that under the conditions of zinc sulfide concentrate consumption of 2.0 g/L,zinc oxide dust consumption of 19 g/L,reaction temperature of 80 ℃,reduction time of 20 min,and neutralization time of 240 min,the germanium precipitation rate could reach 97.24%.Under the conditions of initial sulfuric acid concentration of 165 g/L,liquidsolid volume mass ratio of 4 mL/g,leaching temperature of 60 ℃,and leaching time of 60 min,the leaching rate of germanium could reach 98.78%.
关键词
还原/中和沉淀/硫酸浸出/锗/浸出液Key words
reduction/neutralization precipitation/sulfuric acid leaching/germanium/leaching solution引用本文复制引用
基金项目
云南省科技人才与平台计划技术创新人才培养对象项目(202305AD160053)
云南省科技重大专项(202202AB080005)
云南省重点研发计划(202203AA080005)
出版年
2024
NETL
NSTL
维普
万方数据