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Title: Selective separation of zirconium from uranium in carbonate solutions by ion flotation

Abstract

Separation of zirconium from uranium in carbonate media was undertaken by ion flotation. The collector chosen was octylhydroxamic acid (HOHX). It gave a well-flocculated precipitate with zirconium which floated in less than 5 min. The stoichiometry of the reaction is HOHX/Zr = 3.9/1, and the selectivity in the presence of uranium is very high. In fact, for a ratio {Phi} = (HOHX),M/(Zr),M, which is just stoichiometric and is close to 4, the zirconium removal rate reaches 99%, even in industrial media. The loss of uranium is only 0.5% although its concentration is 37.4 g/L. Mechanisms of separation are not affected by a variation of pH between 6.7 and 9.8, of temperature up to 60{degree}C, and of carbonate concentration within the 15 to 60 g/L Na{sub 2}CO{sub 3} range.

Authors:
;  [1];  [2];  [3]
  1. (Centre de Recherche sur La Valorisation des Minerais, Vandoeuvre (France))
  2. (Somair B.P., Artlit (Niger))
  3. (Uranium Pechiney Direction Recherche and Development, Paris (France))
Publication Date:
OSTI Identifier:
6128312
Resource Type:
Journal Article
Journal Name:
Separation Science and Technology; (USA)
Additional Journal Information:
Journal Volume: 25:6; Journal ID: ISSN 0149-6395
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; URANIUM ORES; SEPARATION PROCESSES; CARBONATES; EXPERIMENTAL DATA; FLOTATION; PH VALUE; ZIRCONIUM; CARBON COMPOUNDS; DATA; ELEMENTS; INFORMATION; METALS; NUMERICAL DATA; ORES; OXYGEN COMPOUNDS; TRANSITION ELEMENTS; 050400* - Nuclear Fuels- Feed Processing; 400105 - Separation Procedures

Citation Formats

Jdid, E.A., Blazy, P., Mahamadou, A., and Durand, R. Selective separation of zirconium from uranium in carbonate solutions by ion flotation. United States: N. p., 1990. Web. doi:10.1080/01496399008050360.
Jdid, E.A., Blazy, P., Mahamadou, A., & Durand, R. Selective separation of zirconium from uranium in carbonate solutions by ion flotation. United States. doi:10.1080/01496399008050360.
Jdid, E.A., Blazy, P., Mahamadou, A., and Durand, R. Tue . "Selective separation of zirconium from uranium in carbonate solutions by ion flotation". United States. doi:10.1080/01496399008050360.
@article{osti_6128312,
title = {Selective separation of zirconium from uranium in carbonate solutions by ion flotation},
author = {Jdid, E.A. and Blazy, P. and Mahamadou, A. and Durand, R.},
abstractNote = {Separation of zirconium from uranium in carbonate media was undertaken by ion flotation. The collector chosen was octylhydroxamic acid (HOHX). It gave a well-flocculated precipitate with zirconium which floated in less than 5 min. The stoichiometry of the reaction is HOHX/Zr = 3.9/1, and the selectivity in the presence of uranium is very high. In fact, for a ratio {Phi} = (HOHX),M/(Zr),M, which is just stoichiometric and is close to 4, the zirconium removal rate reaches 99%, even in industrial media. The loss of uranium is only 0.5% although its concentration is 37.4 g/L. Mechanisms of separation are not affected by a variation of pH between 6.7 and 9.8, of temperature up to 60{degree}C, and of carbonate concentration within the 15 to 60 g/L Na{sub 2}CO{sub 3} range.},
doi = {10.1080/01496399008050360},
journal = {Separation Science and Technology; (USA)},
issn = {0149-6395},
number = ,
volume = 25:6,
place = {United States},
year = {1990},
month = {5}
}