Solvent Extraction of Gallium and Germanium Using a Novel Hydroxamic Acid Extractant

IF 2.7 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Minerals Pub Date : 2024-11-12 DOI:10.3390/min14111147

Zong Guo, Zhixing Qin, Sanping Liu, Wei Zhang, Chaozhen Zheng, Haibei Wang

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引用次数: 9

Abstract

The rare metals gallium and germanium are key strategic metals that are widely used in emerging industries. In this work, a novel hydroxamic acid extractant, BGYW, with low toxicity, was used for the selective solvent extraction of Ga ions and Ge ions from Zn, As, Cu, and Al ions in the solution from zinc smelting. The gallium and germanium ions were extracted efficiently under optimized conditions. Gallium ions were preferentially stripped using sulfuric acid, and germanium ions were stripped using an ammonium fluoride solution. Compared with the commercial extractant YW100, the dissolution loss of BGYW was reduced by 10 times. After 15 cycles, the germanium solvent extraction efficiency of BGYW remained at 100%, and the solvent extraction efficiency of gallium was about 98.7%, while the solvent extraction efficiency of both Ga ions and Ge ions using YW100 decreased to 20% after five cycles. This novel solvent extraction system exhibits considerable promise for application in zinc smelting processes for gallium and germanium solvent extraction.

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新型羟肟酸萃取剂萃取镓锗

稀有金属镓和锗是新兴产业中广泛应用的关键战略性金属。研究了一种新型低毒羟肟酸萃取剂BGYW对锌冶炼液中Zn、As、Cu、Al离子中的Ga、Ge离子进行选择性溶剂萃取。在优化的条件下，镓和锗离子得到了有效的提取。镓离子优先用硫酸剥离，锗离子优先用氟化铵溶液剥离。与工业萃取剂YW100相比，BGYW的溶出损失降低了10倍。经过15次循环后，BGYW对锗的溶剂萃取效率保持在100%，对镓的溶剂萃取效率约为98.7%，而YW100对Ga离子和Ge离子的溶剂萃取效率在5次循环后均降至20%。这种新型溶剂萃取系统在锌冶炼工艺中对镓和锗的溶剂萃取有很大的应用前景。

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来源期刊

Minerals MINERALOGY-MINING & MINERAL PROCESSING

CiteScore

4.10

自引率

20.00%

发文量

1351

审稿时长

19.04 days

期刊介绍： Minerals (ISSN 2075-163X) is an international open access journal that covers the broad field of mineralogy, economic mineral resources, mineral exploration, innovative mining techniques and advances in mineral processing. It publishes reviews, regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.