Synergistic effect of reduction leaching of manganese anode slime and oxidation pretreatment of gold concentrate

被引：1
|
作者：
Guo, Ping [1 ,2 ,3 ,4 ]
Tang, Junjing [1 ,2 ,3 ,4 ]
Wang, Shixing [1 ,2 ,3 ,4 ]
Zhang, Libo [1 ,2 ,3 ,4 ]
机构：
[1] Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Yunnan, Peoples R China
[2] Natl Local Joint Lab Engn Applicat Microwave Ener, Kunming 650093, Yunnan, Peoples R China
[3] Unconvent Met Minist Educ, Key Lab, Kunming 650093, Yunnan, Peoples R China
[4] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 10期
关键词：
manganese anode slime; refractory ore; pyrite; ultrasound; PYROLUSITE; RECOVERY; ORES;
D O I：
10.1088/2053-1591/ab3bb2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The combined treatment process of manganese anode slime and gold concentrate was studied. The reduction leaching of manganese anode slime and the oxidative decomposition of pyrite and arsenopyrite could be realized simultaneously by the synergistic action of the two ores. The effects of time, mass ratio of two ores, concentration of sulphuric acid and temperature on the leaching rate of manganese were investigated. The optimum technological conditions were determined as follows: the leaching rate of manganese was 85.24% when the concentration of sulphuric acid was 1 moll(-1) and the ratio of two ores (Fe:Mn) was 0.5 at the temperature of 85 degrees C and 120 min. The extraction rate of gold from pretreated gold ore can reach 70% in the process of ultrasonic enhanced leaching. Compared with the direct leaching rate (15.6%) of the original ore, the leaching rate has been greatly improved.
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页数：7
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