Alkaline leaching of zinc from low-grade oxide zinc ore using ammonium citrate as complexing agent

被引：6
|
作者：
Li, Shiwei [1 ,2 ,3 ,4 ]
Ma, Aiyuan [1 ,2 ,3 ,4 ]
Yang, Kun [1 ,2 ,3 ,4 ]
Yin, Shaohua [1 ,2 ,3 ,4 ]
Zhang, Libo [1 ,2 ,3 ,4 ]
Peng, Jinhui [1 ,2 ,3 ,4 ]
Chen, Weiheng [1 ,2 ,3 ,4 ]
Xie, Feng [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] Yunnan Prov Key Lab Intensificat Met, Kunming 650093, Yunnan, Peoples R China
[3] Natl Local Joint Lab Engn Applicat Microwave Ener, Kunming 650093, Yunnan, Peoples R China
[4] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
来源：
GREEN PROCESSING AND SYNTHESIS | 2015年 / 4卷 / 03期
基金：
中国国家自然科学基金;
关键词：
ammonium citrate; low grade zinc oxide ore; zinc recovery; STRUCTURAL-CHARACTERIZATION; ORGANIC-ACIDS; SILICATE ORE; HEMIMORPHITE; KINETICS; LEAD; METALS; SYSTEM; ZN;
D O I：
10.1515/gps-2015-0023
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, the effect of ammonium citrate (AC) on the leaching of low grade zinc oxide ore in the 5 m ammonia solution was studied. AC served as a leaching agent and complexing agent, respectively. The results of the leaching experiments showed that AC increased the leaching rate of zinc, which increased with the rise of the concentration of AC. Under conditions of temperature of 30 degrees C, reaction time of 60 min, citric acid concentration of 1 mol/l and solid to liquid ratio of 1: 5, 88.83% of zinc was leached. The enhancement mechanism of AC to the leaching rate of zinc was studied by Fourier transform infrared (FT-IR) spectra.
引用
收藏
页码：219 / 223
页数：5
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