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Mutual action of Di-(2-ethlhexyl)-dithiophosphoric acid and trioctylamine and the mechanism of zinc ion extraction by them
Alternative TitleActa Phys.-Chim. Sin.
Zhang, DL; Ke, JJ; Lu, LZ
2001-02-01
Source PublicationACTA PHYSICO-CHIMICA SINICA
ISSN1000-6818
Volume17Issue:2Pages:189-192
AbstractThe extraction of zinc by di-(2-ethylhexyl) -dithiophosphoric acid(D2EHDTPA) -trioctylamine (TOA) was investigated. Conductance titration and interfacial pressure measurement showed that when D2EHDTPA and TOA were mixed they reacted and formed an electrolyte of ionic pairs. The extraction of zinc by the electrolyte was of antisynergistic nature, and the reaction was Zn2+ + 2BHA((o)) --> ZnA(2(o)) + 2B((o)) + 2H(+) (subscript (o) stand for "oil phase"). The zinc extraction was an endothermic reaction, the heat of reaction was 130.1 kJ . mol(-1). Some phenomena of interface concerned were also discussed.; The extraction of zinc by di-(2-ethylhexyl) -dithiophosphoric acid(D2EHDTPA) -trioctylamine (TOA) was investigated. Conductance titration and interfacial pressure measurement showed that when D2EHDTPA and TOA were mixed they reacted and formed an electrolyte of ionic pairs. The extraction of zinc by the electrolyte was of antisynergistic nature, and the reaction was Zn2+ + 2BHA((o)) --> ZnA(2(o)) + 2B((o)) + 2H(+) (subscript (o) stand for "oil phase"). The zinc extraction was an endothermic reaction, the heat of reaction was 130.1 kJ . mol(-1). Some phenomena of interface concerned were also discussed.
KeywordZinc Solvent Extraction Antisynergism Thio-substituted Organophosphoric Acid Trioctylamine Interface Properties
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3866/PKU.WHXB20010221
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000167285500021
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5769
Collection研究所(批量导入)
Affiliation1.Beijing Union Univ, Chem Engn Coll, Beijing 100023, Peoples R China
2.Chinese Acad Sci, Inst Chem Met, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhang, DL,Ke, JJ,Lu, LZ. Mutual action of Di-(2-ethlhexyl)-dithiophosphoric acid and trioctylamine and the mechanism of zinc ion extraction by them[J]. ACTA PHYSICO-CHIMICA SINICA,2001,17(2):189-192.
APA Zhang, DL,Ke, JJ,&Lu, LZ.(2001).Mutual action of Di-(2-ethlhexyl)-dithiophosphoric acid and trioctylamine and the mechanism of zinc ion extraction by them.ACTA PHYSICO-CHIMICA SINICA,17(2),189-192.
MLA Zhang, DL,et al."Mutual action of Di-(2-ethlhexyl)-dithiophosphoric acid and trioctylamine and the mechanism of zinc ion extraction by them".ACTA PHYSICO-CHIMICA SINICA 17.2(2001):189-192.
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