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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
Source PublicationCHEMICAL PAPERS
ISSN0366-6352
Volume72Issue:1Pages:109-118
AbstractThe 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.
KeywordExtraction Complexes v(v) And Cr(Vi) Primary Amine Extractants Extraction Mechanism Oxidation Reaction
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11696-017-0262-0
Indexed BySCI
Language英语
WOS KeywordBEARING VANADIUM SLAG ; SOLVENT-EXTRACTION ; LEACHING SOLUTION ; CHROMIUM ; RECOVERY ; SEPARATION ; REAGENT ; COAL ; XPS
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Natural Science Foundation(51425405) ; Youth Innovation Promotion Association, CAS(2016042)
WOS IDWOS:000419790000011
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24080
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.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
Recommended Citation
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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