Hydrochloric Acid Leaching Kinetics Study of Germanium Concentrate

被引：0
|
作者：
Rao, Mingyuan [1 ,2 ,3 ,4 ]
Xu, Yingjie [1 ,2 ,3 ,4 ]
Xia, Hongying [1 ,2 ,3 ,4 ]
Jiang, Guiyu [1 ,2 ,3 ,4 ]
Dai, Linqing [1 ,2 ,3 ,4 ]
Zhang, Libo [1 ,2 ,3 ,4 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
[2] Kunming Univ Sci & Technol, Yunnan Prov Key Lab Intensificat Met, Kunming 650093, Yunnan, Peoples R China
[3] Minist Educ, Key Lab Unconvent Met, Kunming 650093, Yunnan, Peoples R China
[4] Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cle, Kunming 650093, Yunnan, Peoples R China
来源：
JOM | 2024年 / 76卷 / 12期
基金：
国家重点研发计划;
关键词：
EXTRACTION; RECOVERY;
D O I：
10.1007/s11837-024-06895-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The kinetics of germanium concentrate under hydrochloric acid leaching has been investigated based on the application of hydrochloric acid in the leaching process. The influences of hydrochloric acid concentration and temperature on the leaching of germanium concentrate have been examined. When the initial hydrochloric acid concentration was 6 mol/L, the liquid-solid mass ratio was 7:1, and the leaching was carried out at 343 K for 50 min, the leaching efficiency of germanium in germanium concentrate was the best, reaching 92.51%. The reaction process of hydrochloric acid leaching of germanium concentrate is in accordance with the contraction nucleus model. The hydrochloric acid leaching reaction of germanium concentrate was controlled by both chemical reaction and diffusion rate. According to the mixed control model, the Ea (apparent activation energy) is 35.99 kJ/mol, and the apparent grade n is 1.86.
引用
收藏
页码：7209 / 7217
页数：9
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