Kinetic study on the transfer mechanism of uranyl(VI) ions using N,N,N',N'-tetrabutyladipicamide from nitric acid media

Si-Xiu Sun

doi:10.1023/a:1013210718365

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 249: Issue 3

Kinetic study on the transfer mechanism of uranyl(VI) ions using N,N,N',N'-tetrabutyladipicamide from nitric acid media

Author:

Si-Xiu Sun

Si-Xiu Sun Shandong University Department of Chemistry Jinan 250100 P.R.China

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Pages:: 625–628

Online Publication Date:: 29 Oct 2004

Publication Date:: 17 Sep 2001

Article Category:: Research Article

DOI:: https://doi.org/10.1023/a:1013210718365

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Abstract

By using stirred-cell method as experimental technique, the kinetictransfer mechanism of UO₂²⁺+ with N,N,N',N'-tetrabutyladipicamide(TBAA) from nitric acid solutions into toluene was studied. The differentconditions effecting the extraction rate constants (k'_f and k'_b ) were investigated, such as UO₂²⁺ concentration,HNO₃ concentration, TBAA concentration, temperature and agitationspeed. It was found that the extraction process was controlled by the diffusionof UO₂ (NO₃ )₂ . 2TBAA from the liquid-liquidsurface into the organic phase in the range of the experimental concentrationof HNO₃. The extraction rate was found to be of pseudo-first orderwith respect to the concentration of uranium(VI).

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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)