Solvent extraction of thorium (IV) with dialkyldithiophosphoric acids

M. Curtui; I. Haiduc; Iovanca Haiduc

doi:10.1007/bf02164260

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 165: Issue 2

Solvent extraction of thorium (IV) with dialkyldithiophosphoric acids

Authors:

M. Curtui

M. Curtui Bases-Bolyai University Chemistry Department R-3400 Cluj-Napoca Roumania

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I. Haiduc

I. Haiduc Bases-Bolyai University Chemistry Department R-3400 Cluj-Napoca Roumania

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Iovanca Haiduc

Iovanca Haiduc Bases-Bolyai University Chemistry Department R-3400 Cluj-Napoca Roumania

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Pages:: 95–105

Online Publication Date:: 27 Sep 2005

Publication Date:: 17 May 1992

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02164260

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Abstract

Solvent extraction of thorium (IV) from aqueous solution with dialkyldithiophosphoric acids (RO)₂P(S)SH, (abbreviated Hdtp) in different organic solvents shows that the chain length in Hdtp significantly influence the magnitude of the distribution ratio. The diluent effect and the influence of the inorganic anion present in the aqueous phase was investigated in the Th — di (2-ethyl-hexyl) dithiophosphoric acid (HEhdtp) extraction system. The treatment of the partition data shows that the extraction of Th(IV) in benzene, cyclohexane, chloroform, carbon tetrachloride and n-butanol from perchlorate, chloride and nitrate media occurs via an ion-exchange mechanism. Inorganic anions present in the aqueous phase do not participate in the formation of the extracted species but influence the magnitude of the distribution ratios.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)