湖南工业大学学报2011，Vol.25Issue(4)：1-4,90,5.
硫化锌精矿中镓锗在高压氧浸中的浸出行为研究
Leaching Behaviors of Gallium and Germanium in Zinc Sulfide Concentrate during High Oxygen Pressure Leach Process
徐毅1
作者信息
- 1. 深圳中金岭南有色金属股份公司丹霞冶炼厂,广东仁化512300
- 折叠
摘要
Abstract
The leaching behaviors of Ga and Ge in ZnS concentrate during high oxygen pressure leach process wereinvestigated experimentally. The effects of molar ratio of sulfuric acid to zinc, leach time, initial Fe^2＋ concentration in the leach solution, additive amount of sodium lignosulfonic acid, particle size of concentrate and temperature on the leach efficiencies of such elements as Zn, Fe, Ga and Ge were evaluated. The results show that the leach efficiency of Ge is in accord with that of zinc, while the leach efficiency of Ga is relative to that of Fe closely. The key of raising leach efficiency of Ga is to leach Fe in the concentrate adequately, as well as to maintain the acidity of leach solution and protect Fe^2＋ from oxidation-hydrolysis at high temperature. It is reasonable that using a two-steps countercurrent leach process to treat zinc sulfide concentrate with high content of Ga and Ge, not only can obtain higher leach efficiencies of Ga and Ge, but also make the acidity of the after leach solution less than 20 gH2SO4/L. It is beneficial to the subsequent neutralization.关键词
硫化锌精矿/高压氧浸/镓锗行为/浸出率Key words
zinc sulfide concentrate/high oxygen pressure leach/leaching behaviors of Ga and Ge/leach efficiency分类
矿业与冶金引用本文复制引用
徐毅..硫化锌精矿中镓锗在高压氧浸中的浸出行为研究[J].湖南工业大学学报,2011,25(4):1-4,90,5.
