Solvent extraction of lithium from Sidoarjo mud using D2EHPA

Q1 Social Sciences

South African Journal of Chemical Engineering Pub Date : 2024-05-03 DOI:10.1016/j.sajce.2024.04.011

S.R. Juliastuti, R. Darmawan, E. Ningsih, O. Rachmaniah, W. Meka, Fahmi

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引用次数: 0

Abstract

The limited supply of fossil fuels towards carbon neutrality has prompted massive efforts to replace fossil fuel vehicles with electric vehicles. This research investigates the recovery of lithium in leaching solutions through solvent extraction experiments using several experimental parameters such as ratio, extraction time, solvent concentration, type of diluent and stirring speed. Lithium leaching in Sidoarjo mud has been carried out using a hydrometallurgical process followed by solvent extraction. The solvent used is Di-(2-ethylhexyl) phosphoric acid (D2EHPA) with Kerosene and vegetable oil as diluents. The Taghuchi L8 orthogonal arrangement was carried out to identify process parameters that influence the concentration of lithium extract. The influence of parameters was examined by Analysis of Variance (ANOVA) through contribution percentages. Investigation of optimized lithium extraction is a ratio of 1:1, extraction time of 30 min, solvent concentration of 1 M, type of vegetable oil diluent and stirring speed of 300 rpm. Thus, the results show that ratio is the most influential factor with a Lithium contribution percentage of 67.22 %.

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使用 D2EHPA 溶剂萃取 Sidoarjo 泥浆中的锂

为实现碳中和，化石燃料的供应有限，这促使人们下大力气用电动汽车取代化石燃料汽车。本研究通过溶剂萃取实验研究了锂在沥滤溶液中的回收情况，实验中使用了多个实验参数，如比例、萃取时间、溶剂浓度、稀释剂类型和搅拌速度。在 Sidoarjo 泥浆中进行的锂浸出采用的是湿法冶金工艺，然后进行溶剂萃取。使用的溶剂是二（2-乙基己基）磷酸（D2EHPA），稀释剂是煤油和植物油。采用 Taghuchi L8 正交排列法确定影响锂提取物浓度的工艺参数。参数的影响通过贡献百分比进行方差分析（ANOVA）。锂萃取的优化参数为：萃取比例 1:1、萃取时间 30 分钟、溶剂浓度 1 M、植物油稀释剂类型和搅拌速度 300 rpm。因此，结果表明，比例是影响最大的因素，锂的贡献率为 67.22%。

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来源期刊

South African Journal of Chemical Engineering Social Sciences-Education

CiteScore

8.40

自引率

0.00%

发文量

100

审稿时长

33 weeks

期刊介绍： The journal has a particular interest in publishing papers on the unique issues facing chemical engineering taking place in countries that are rich in resources but face specific technical and societal challenges, which require detailed knowledge of local conditions to address. Core topic areas are: Environmental process engineering • treatment and handling of waste and pollutants • the abatement of pollution, environmental process control • cleaner technologies • waste minimization • environmental chemical engineering • water treatment Reaction Engineering • modelling and simulation of reactors • transport phenomena within reacting systems • fluidization technology • reactor design Separation technologies • classic separations • novel separations Process and materials synthesis • novel synthesis of materials or processes, including but not limited to nanotechnology, ceramics, etc. Metallurgical process engineering and coal technology • novel developments related to the minerals beneficiation industry • coal technology Chemical engineering education • guides to good practice • novel approaches to learning • education beyond university.