Studies on the stripping of cerium from the loaded tbp-kerosene solution

Conference · Tue Jul 01 00:00:00 EDT 2008

OSTI ID:21230372

Rizk, S E; Abdel Rahman, N; Daoud, J A; Aly, H F ^[1]

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1. Hot Laboratories Centre, Atomic Energy Authority, Cairo (Egypt)

The reductive stripping of Ce(IV) from the loaded organic phase (30% TBP in kerosene) was investigated, using two stripping agents, EDTA and H{sub 2}O{sub 2}, in nitric acid. The results are compared to determine the optimum conditions for the reduction of Ce(IV) in the organic phase to Ce(III) in the aqueous phase. For each of the two stripping agents, the effect of different parameters affecting the reduction process was investigated: stripping-agent concentration, nitric acid concentration, phase ratio, shaking time, and temperature. The results are compared and discussed in terms of the conditions required for maximum reductive stripping of Ce(IV). (authors)

• Research Organization: Chemical Sciences Division, Oak Ridge National Laboratory (United States)
• OSTI ID: 21230372
• Resource Relation: Conference: ISEC 2008: International Solvent Extraction Conference on Solvent Extraction: Fundamentals to Industrial Applications, Tucson, AZ (United States), 15-19 Sep 2008; Other Information: Country of input: France; 7 refs; Related Information: In: Proceedings of ISEC 2008, International Solvent Extraction Conference - Solvent Extraction: Fundamentals to Industrial Applications, by Moyer, Bruce A. (ed.), 1740 pages.
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CERIUM
EDTA
HYDROGEN PEROXIDE
KEROSENE
NITRIC ACID
REDUCTION
SOLUTIONS
STRIPPING
TBP