Basic Study on the Synergistic Extraction of V and Ga from Bayer Mother Liquor of Alumina Production

IF 2.5 3区材料科学 Q3 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY Journal of Sustainable Metallurgy Pub Date : 2024-06-03 DOI:10.1007/s40831-024-00806-5

Zewei Wang, Weiguang Zhang, Yang Chen, Hongyu Lu, Liang Yu, Xuejiao Cao, Yibing Li

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Abstract

The synergistic extraction law of vanadium and gallium from Bayer mother liquor by OH⁻ type LSC-600S resin was investigated in this paper. More than 72.21% of vanadium and 74.46% of gallium were adsorbed from Bayer mother liquor, when the conditions were resin of 4 g/L, adsorption time of 100 min, temperature of 70 °C, and stirring rate of 500 r/min. Thermodynamic calculations show that the extraction of vanadium and gallium by the resin proceeds spontaneously, and that an increase in temperature favors the extraction of vanadium and gallium. Theoretical research results showed that, the kinetics of adsorption process followed the pseudo-second-order reaction, and the adsorption isotherm followed the Freundlich isotherm model. The infrared spectrum analysis results showed that, gallium ions in solution interacted with the C=NOH in the resin, and vanadium ions interacted with the C=NOH and C–NH₂. The synergistic extraction of vanadium and gallium does not reduce the adsorption capacity of the resin for gallium, but also effectively recovers vanadium. It provides a new method for the recovery of vanadium resources from Bayer mother liquor.

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从氧化铝生产的拜耳母液中协同提取 V 和 Ga 的基础研究

本文研究了 OH 型 LSC-600S 树脂从拜耳公司母液中协同萃取钒和镓的规律。在树脂浓度为 4 g/L、吸附时间为 100 min、温度为 70 ℃、搅拌速度为 500 r/min 的条件下，拜耳母液中钒的吸附率超过 72.21%，镓的吸附率超过 74.46%。热力学计算表明，树脂对钒和镓的萃取是自发进行的，温度升高有利于钒和镓的萃取。理论研究结果表明，吸附过程的动力学遵循伪二阶反应，吸附等温线遵循 Freundlich 等温线模型。红外光谱分析结果表明，溶液中的镓离子与树脂中的 C=NOH 相互作用，钒离子与 C=NOH 和 C-NH2 相互作用。钒和镓的协同萃取不仅不会降低树脂对镓的吸附能力，还能有效地回收钒。它为从拜耳母液中回收钒资源提供了一种新方法。

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来源期刊

Journal of Sustainable Metallurgy Materials Science-Metals and Alloys

CiteScore

4.00

自引率

12.50%

发文量

151

期刊介绍： Journal of Sustainable Metallurgy is dedicated to presenting metallurgical processes and related research aimed at improving the sustainability of metal-producing industries, with a particular emphasis on materials recovery, reuse, and recycling. Its editorial scope encompasses new techniques, as well as optimization of existing processes, including utilization, treatment, and management of metallurgically generated residues. Articles on non-technical barriers and drivers that can affect sustainability will also be considered.