Relation between the structure and extracting power of higher tertiary amines: II. The extraction of rare earth elements

V. Shvedov; A. Kopyrin; V. Titov

doi:10.1007/bf02517726

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 33: Issue 2

Relation between the structure and extracting power of higher tertiary amines

II. The extraction of rare earth elements

Authors:

V. Shvedov

V. Shvedov Leningrad Lensoviet Institute of Technology Leningrad (USSR)

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A. Kopyrin

A. Kopyrin Leningrad Lensoviet Institute of Technology Leningrad (USSR)

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V. Titov

V. Titov Leningrad Lensoviet Institute of Technology Leningrad (USSR)

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Pages:: 229–236

Online Publication Date:: 09 Jan 2007

Publication Date:: 01 Sep 1976

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02517726

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Abstract

The effect of the structure of some tertiary amines on the processes of the separation of cerium and neodymium nitrates by extraction has been examined. It was found that the changes in extracting power of these amines owing to their different structures can not be explained by only the inductive effects of the substituents on the nitrogen atom. The steric factors in extraction of rare earth elements (REE) by tertiary amines are of primary importance, the extraction mechanism of these elements vary with the change of the amine structure. It has been shown that the methyldialkylamines are the most effective extractants among the investigated amines for both the extraction and the separation of REE. This can be explained by the considerable reduction of the hydrocarbon part of the molecules of these extractants and by the consequent change of the extracting mechanism.

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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)