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A study of precipitation from pure solutions of uranyl nitrate; Etude de la precipitaion de solutions pures de nitrate d'uranyle

Abstract

After its purification by extraction of the uranyl nitrate from the organic solvent, uranium has to be converted into solid form again: uranium trioxide (UO{sub 3}). It can be done either by thermal decomposition of uranyl nitrate or by precipitation of uranium, followed by filtration and calcination. Only the second method has been studied for now at the Bouchet plant. This paper reports the bench-scale and pilot-scale experiments of the studies of the precipitation of pure solutions of uranyl nitrate using ammonia (gaseous or in solution) or ammonium carbonate. These have been carried out at the Bouchet plant. It investigates the chemical aspect (pH, precipitates chemical composition) and the technical aspect of the different ways of precipitation (conditions of precipitation, decantation and filtration of precipitates). (M.P.)
Authors:
Decrop, J; Holder, J; Sauteron, J [1] 
  1. Commissariat a l'Energie Atomique, Usine du Bouchet, Service des Lab. de Recherches et de Controle, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1961
Product Type:
Technical Report
Report Number:
CEA-R-1974
Resource Relation:
Other Information: 21 refs
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; AMMONIA; AMMONIUM CARBONATES; AMMONIUM URANATES; BENCH-SCALE EXPERIMENTS; COMPARATIVE EVALUATIONS; DECANTATION; FILTRATION; PH VALUE; PILOT PLANTS; PRECIPITATION; TEMPERATURE DEPENDENCE; TIME DEPENDENCE; URANIUM CONCENTRATES; URANIUM HYDROXIDES; URANIUM TRIOXIDE; URANYL NITRATES
OSTI ID:
20972231
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1974001551
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
40 pages
Announcement Date:
Jan 17, 2008

Citation Formats

Decrop, J, Holder, J, and Sauteron, J. A study of precipitation from pure solutions of uranyl nitrate; Etude de la precipitaion de solutions pures de nitrate d'uranyle. France: N. p., 1961. Web.
Decrop, J, Holder, J, & Sauteron, J. A study of precipitation from pure solutions of uranyl nitrate; Etude de la precipitaion de solutions pures de nitrate d'uranyle. France.
Decrop, J, Holder, J, and Sauteron, J. 1961. "A study of precipitation from pure solutions of uranyl nitrate; Etude de la precipitaion de solutions pures de nitrate d'uranyle." France.
@misc{etde_20972231,
title = {A study of precipitation from pure solutions of uranyl nitrate; Etude de la precipitaion de solutions pures de nitrate d'uranyle}
author = {Decrop, J, Holder, J, and Sauteron, J}
abstractNote = {After its purification by extraction of the uranyl nitrate from the organic solvent, uranium has to be converted into solid form again: uranium trioxide (UO{sub 3}). It can be done either by thermal decomposition of uranyl nitrate or by precipitation of uranium, followed by filtration and calcination. Only the second method has been studied for now at the Bouchet plant. This paper reports the bench-scale and pilot-scale experiments of the studies of the precipitation of pure solutions of uranyl nitrate using ammonia (gaseous or in solution) or ammonium carbonate. These have been carried out at the Bouchet plant. It investigates the chemical aspect (pH, precipitates chemical composition) and the technical aspect of the different ways of precipitation (conditions of precipitation, decantation and filtration of precipitates). (M.P.)}
place = {France}
year = {1961}
month = {Jul}
}