Leaching performance of low grade zinc oxide ore in the system of NH3-(NH4)2SO4-H2O

被引：0
|
作者：
Song, Kaiwei [1 ,2 ]
Yuan, Jingjie [1 ,2 ]
Shen, Peilun [1 ,2 ]
Yan, Shoukai [1 ,2 ]
Li, Fei [1 ,2 ]
Liu, Dianwen [1 ,2 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming 650093, Yunnan, Peoples R China
[2] State Key Lab Complex Nonferrous Met Resource Cle, Kunming 650093, Yunnan, Peoples R China
来源：
PROCEEDINGS OF THE 2015 4TH INTERNATIONAL CONFERENCE ON SUSTAINABLE ENERGY AND ENVIRONMENTAL ENGINEERING | 2016年 / 53卷
关键词：
zinc oxide ore; NH3-(NH4)(2)SO4-H2O system; ammonia leaching; leaching efficiency;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Leaching test on the oxidized zinc ore from Kashi, Xinjiang Autonomous Region is studied in the (NH4)(2)SO4-NH3-H2O system; Systematic studies are made to show the effects of various factors on the leaching rate of zinc. The optimum conditions for leaching is finally confirmed, i.e., the grinding fineness is 80%-74um, concentration of ammonium sulfate is 2mol/L, concentration of ammonia is 4mol/L, reaction temperature is 40 degrees C, the ratio of liquid to solid is 4:1; stirring rate is 300rpm and leaching time is 3h. Ultimately, the leaching rate of Zn could reach more than 91%.
引用
收藏
页码：398 / 403
页数：6
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