Efficient separation and recovery of V(V) from Cr(VI) in aqueous solution using new task-specific ionic liquid of [C12H25NH3][Cyanex 272]

Xiaohua Jing; Zhumei Sun; Dandan Zhao; Lingling Xia; Ziqing Ye

Arabian Journal of Chemistry (Oct 2022)

Efficient separation and recovery of V(V) from Cr(VI) in aqueous solution using new task-specific ionic liquid of [C12H25NH3][Cyanex 272]

Xiaohua Jing,
Zhumei Sun,
Dandan Zhao,
Lingling Xia,
Ziqing Ye

Affiliations

Xiaohua Jing: School of Chemistry and Chemical Engineering, Anyang Normal University, No. 436 Xian’ge Avenue, Wenfeng District, Anyang 455000, Henan Province, People’s Republic of China; Henan Province Key Laboratory of New Optoelectronic Functional Materials, No. 436 Xian’ge Avenue, Wenfeng District, Anyang 455000, Henan Province, People’s Republic of China; Corresponding author.
Zhumei Sun: School of Environment and Safety Engineering, North University of China, Taiyuan 030051, Shanxi Province, People’s Republic of China
Dandan Zhao: School of Chemistry and Chemical Engineering, Anyang Normal University, No. 436 Xian’ge Avenue, Wenfeng District, Anyang 455000, Henan Province, People’s Republic of China; Henan Province Key Laboratory of New Optoelectronic Functional Materials, No. 436 Xian’ge Avenue, Wenfeng District, Anyang 455000, Henan Province, People’s Republic of China
Lingling Xia: School of Chemistry and Chemical Engineering, Anyang Normal University, No. 436 Xian’ge Avenue, Wenfeng District, Anyang 455000, Henan Province, People’s Republic of China; Henan Province Key Laboratory of New Optoelectronic Functional Materials, No. 436 Xian’ge Avenue, Wenfeng District, Anyang 455000, Henan Province, People’s Republic of China
Ziqing Ye: School of Chemistry and Chemical Engineering, Anyang Normal University, No. 436 Xian’ge Avenue, Wenfeng District, Anyang 455000, Henan Province, People’s Republic of China; Henan Province Key Laboratory of New Optoelectronic Functional Materials, No. 436 Xian’ge Avenue, Wenfeng District, Anyang 455000, Henan Province, People’s Republic of China

Journal volume & issue: Vol. 15, no. 10
p. 104173

Abstract

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An environmentally friendly process for efficient separation and recovery of V(V) from aqueous solution containing Cr(VI) was proposed using the new task-specific ionic liquid of [C12H25NH3][Cyanex 272]. The separation factor of V(V) from Cr(VI) was about 1.08 × 103 with the optimum extraction conditions, and the extraction percentage of V(V) was about 99.5 %. The loaded organic phase was stripped using the NH3·H2O, and the recovered NH4VO3 was obtained with the processes of stripping, filtration, washing, and desiccation. The qualitative analysis of the recovered NH4VO3 was made using the X-ray diffraction, and its peaks were good consistent with the standard sample. Morphology of the recovered NH4VO3 was also studied using the scanning electron microscope. The extraction mechanism of V(V) using the [C12H25NH3][Cyanex 272] was investigated using the slope method and infrared spectrum analysis. This new environmentally friendly process can be used for the separation and recovery of V(V) from real leaching solution with the aim of industrial application.

Published in Arabian Journal of Chemistry

ISSN: 1878-5352 (Print)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: http://www.journals.elsevier.com/arabian-journal-of-chemistry/

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