Published 2001 | Version v1
Book

Extraction properties of zirconium salt of DBPA during TPE and REE separation from nitric acid solutions

  • 1. NPO Radievyj Inst. im. V.G. Khlopina, Sankt-Peterburg (Russian Federation)

Description

Structure of zirconium salt of dibutylphosphoric acid (ZS DBP) and complexes forming in organic phase during extraction of rare earths by ZS DBP in dependence on acidity, concentration of ZS DBP and saturation of extractant by metal is proposed on the base of data on extraction and IR spectrometry. By means of mathematical model method contribution of different extraction mechanisms is exposed for all rare earths and so Am and Cm. Presence of TBP in ZS DBP decreases distribution coefficients regardless of diluent in Ce, Eu and Am extraction, but increases extractant capacity as to rare earths to a extent surpassing significantly element extraction by TBP

Abstract (Russian)

На основании данных по экстракции и ИК спектрометрии предложена структура циркониевой соли дибутилфосфорной кислоты (ЦС ДБФ), а также структуры комплексов, образующихся в органической фазе, при экстракции редкоземельных элементов ЦС ДБФ в зависимости от кислотности, концентрации ЦС ДБФ и насыщения экстрагента металлом. Методом математического моделирования выявлен вклад различных механизмов экстракции для всех редкоземельных элементов, а также Am и Cm. Присутствие ТБФ в ЦС ДБФ независимо от разбавителя при экстракции Ce, Eu и Am понижает коэффициенты распределения элементов, но увеличивает емкость экстрагента по редкоземельным элементам на величину, существенно превосходящую экстракцию элементов самим ТБФ
Part of:
Chemistry and technology of extraction (collection of scientific reports of the Mendeleev Russian Chemical and Technology University). Volume 1

Additional details

Additional titles

Original title (Russian)
Ehkstraktsionnye svojstva TsS DBFK pri izvlechenii TPEh i RZEh iz azotnokislykh rastvorov

Publishing Information

Publisher
RKhTU im. D.I. Mendeleeva
Imprint Place
Moscow (Russian Federation)
ISBN
5-7237-0307-2
Imprint Title
Chemistry and technology of extraction (collection of scientific reports of the Mendeleev Russian Chemical and Technology University). Volume 1
Imprint Pagination
366 p.
Journal Page Range
p. 291-300

Conference

Title
12. Russian conference on extraction. - 5. School-seminar on extraction. Nontraditional extraction systems
Original Conference Title
12. Rossijskaya konferentsiya po ehkstraktsii. - 5. Shkola-seminar po ehkstraktsii. Netraditsionnye ehkstraktsionnye sistemy
Dates
7-13 Oct 2001
Place
Moscow (Russian Federation)

Optional Information

Notes
8 refs.; 1 tab.; 10 figs. Imprint:Khimiya i tekhnologiya ehkstraktsii (sbornik nauchnykh trudov Rossijskogo Khimiko-Tekhnologicheskogo Universiteta im. D.I. Mendelleva). Tom 1