Extraction of V(V) and Cr(VI) from aqueous solution using primary amine extractants: extraction mechanism and oxidation of extractants
Jing, Xiaohua1,2; Wang, Jianyou1,4; Cao, Hongbin2; Ning, Pengge2,3; Wang, Qingjie2
2018
发表期刊CHEMICAL PAPERS
ISSN0366-6352
卷号72期号:1页码:109-118
摘要The extraction mechanism and the oxidation of extractants are essential to optimize the extraction process. To investigate the two problems for selective extraction of V(V) and Cr(VI), the extraction complexes of V(V) and Cr(VI) formed in the process of extraction with primary amines were obtained by solvent-out crystallization, respectively. The average compositions of the extraction complexes were determined by element analysis, X-ray photoelectron spectroscopy, and inductive couple plasma-optical emission spectrometry. The chemical functional groups of the extraction complexes were confirmed by Fourier transform infrared spectroscopy and Raman spectroscopy. The structures of the extraction complexes of V(V) were speculated with their functional groups and average compositions. The hydrogen bond association mechanism of V(V) extraction was illustrated with the structure of the complexes, and the oxidation reaction of extractants with Cr(VI) was also demonstrated. According to the oxidation reaction of extractants with Cr(VI) and experiment conditions for the initial pH value, the optimized operation condition of the initial pH value >= 5.5 was determined to prevent the oxidation of extractants. The interaction of V(V) and Cr(VI) for the vanadium extraction and extractant oxidation was also investigated.
关键词Extraction Complexes v(v) And Cr(Vi) Primary Amine Extractants Extraction Mechanism Oxidation Reaction
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s11696-017-0262-0
收录类别SCI
语种英语
关键词[WOS]BEARING VANADIUM SLAG ; SOLVENT-EXTRACTION ; LEACHING SOLUTION ; CHROMIUM ; RECOVERY ; SEPARATION ; REAGENT ; COAL ; XPS
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Natural Science Foundation(51425405) ; Youth Innovation Promotion Association, CAS(2016042)
WOS记录号WOS:000419790000011
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24080
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Nankai Univ, Coll Environm Sci & Engn, Tianjin 300350, Peoples R China
2.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Natl Engn Lab Hydromet Cleaner Prod Technol & Eng, Inst Proc Engn,Div Environm Technol & Engn, Beijing 100190, Peoples R China
3.1 Beier St, Beijing 100190, Peoples R China
4.38 Tongyan Rd,Haihe Educ Pk, Tianjin 300350, Peoples R China
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GB/T 7714
Jing, Xiaohua,Wang, Jianyou,Cao, Hongbin,et al. Extraction of V(V) and Cr(VI) from aqueous solution using primary amine extractants: extraction mechanism and oxidation of extractants[J]. CHEMICAL PAPERS,2018,72(1):109-118.
APA Jing, Xiaohua,Wang, Jianyou,Cao, Hongbin,Ning, Pengge,&Wang, Qingjie.(2018).Extraction of V(V) and Cr(VI) from aqueous solution using primary amine extractants: extraction mechanism and oxidation of extractants.CHEMICAL PAPERS,72(1),109-118.
MLA Jing, Xiaohua,et al."Extraction of V(V) and Cr(VI) from aqueous solution using primary amine extractants: extraction mechanism and oxidation of extractants".CHEMICAL PAPERS 72.1(2018):109-118.
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