Research progress on extraction and recovery of strategic metal gallium from coal fly ash

被引：0
|
作者：
Zhao Z. [1 ]
Cui L. [1 ]
Guo Y. [1 ]
Cheng F. [1 ]
机构：
[1] Institute of Resources and Environment Engineering, State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Shanxi University, Taiyuan
来源：
Huagong Xuebao/CIESC Journal | 2021年 / 72卷 / 06期
关键词：
Coal fly ash; Gallium; Leaching; Occurrence; Recovery; Separation;
D O I：
10.11949/0438-1157.20201400
中图分类号：
学科分类号：
摘要：
Gallium(Ga) is widely used in semiconductor, catalysis, medical and other fields. With the vigorous development of the semiconductor industry, the increasing demand for Ga has prompted people to find new sources. Recycling Ga from coal fly ash can not only reduce environmental pollution, but also alleviate the growing demand for Ga. This review summarized the Ga occurrence in coal fly ash, leaching process and separation methods of Ga from coal fly ash. Meantime, this paper highlighted the current research status of solvent extraction and adsorption for the recovery of Ga from coal fly ash. The existing problems were discussed. Finally, the recovery of Ga resources from coal fly ash was prospected and the synergetic recovery of Ga and other multi elements from coal fly ash had been proposed. © 2021, Editorial Board of CIESC Journal. All right reserved.
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页码：3239 / 3251
页数：12
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