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2024 | OriginalPaper | Buchkapitel

Solvent Extraction of Fe³⁺ with 2-Octanol from Wastewater After Gallium Recovery

verfasst von : Xiaozhou Zhou, Mingyu Wang, Wenjuan Guan, Shengxi Wu, Zuoying Cao, Qinggang Li, Guiqing Zhang

Erschienen in: Rare Metal Technology 2024

Verlag: Springer Nature Switzerland

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Abstract

The process of gallium extraction from fly ash produces a large amount of acidic wastewater. The presence of Fe³⁺ and heavy metal ions in the wastewater after gallium recovery makes it impossible to return to the fly ash leaching process for recycling. In this study, 2-Octanol diluted with sulphonated kerosene was used to extract Fe³⁺ from the acidic wastewater. In a six-stage counter-current with the conditions of O/A = 2/1, 25 °C, 5 min, 4.5 mol/L of HCl, the extraction of Fe³⁺ can reach more than 99%. Over 99.9% of Fe³⁺ could be stripped in a six-stage counter-current batch simulation test using 0.1 mol/L HCl. The mechanism of Fe³⁺ extraction using 2-Octanol was discussed according to FT-IR spectra results.

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Titel: Solvent Extraction of Fe3+ with 2-Octanol from Wastewater After Gallium Recovery
verfasst von: Xiaozhou Zhou
Mingyu Wang
Wenjuan Guan
Shengxi Wu
Zuoying Cao
Qinggang Li
Guiqing Zhang
Verlag: Springer Nature Switzerland
Buch: Rare Metal Technology 2024
Print ISBN: 978-3-031-50235-4

Electronic ISBN: 978-3-031-50236-1

Copyright-Jahr: 2024
DOI: https://doi.org/10.1007/978-3-031-50236-1_27

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