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Solvent purification using a current of water vapour. A continuous process applicable to chemical plants treating irradiated fuels; Purification des solvants par entrainement a la vapeur d'eau. Procede continu applicable aux usines chimiques de traitement des combustibles irradies

Abstract

The pilot plant described in this report is intended for the continuous purification of the solvent used in the plutonium extraction plant at Marcoule, by separating the impurities (fission products). This physical separation is operated by carrying over in a water vapour stream. The contaminating products, only slightly volatile, remain in the form of the droplets and are separated; the vaporised solvent and the water vapour used are condensed and then separated. The originality of the installation resides in the system for pulverising the liquid and in the operating conditions: low working pressure and temperature. The systematic analysis of the various parameters (percentage of residue; flow, pressure and temperature ratios etc...) has shown their influence on the decontamination. The activity due to the zirconium-niobium is undetectable after treatment, and it is easy to obtain decontamination factors of 300 for the ruthenium. The, presence of uranium is favorable for the decontamination. As a conclusion, some extra-technical considerations are given concerning in particular the approximate cost price of the treated solvent per litre. (authors) [French] L'installation pilote decrite dans ce rapport est destinee a purifier, en continu, le solvant utilise a l'usine d'extraction du plutonium de Marcoule, en separant les impuretes (produits  More>>
Authors:
Auchapt, P R; Sautray, R R; Girard, B R [1] 
  1. Commissariat a l'Energie Atomique, Centre de Production de Plutonium, Marcoule (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1964
Product Type:
Technical Report
Report Number:
CEA-R-2404
Resource Relation:
Other Information: 0 refs
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; ANALYTICAL SOLUTION; COST ESTIMATION; DECONTAMINATION; FISSION PRODUCTS; FUEL REPROCESSING PLANTS; PILOT PLANTS; PRECIPITATION SCAVENGING; PULVERIZERS; PURIFICATION; REPROCESSING; SOLVENT EXTRACTION; SPECIFICATIONS; WATER VAPOR
OSTI ID:
20757679
Research Organizations:
CEA Marcoule, 30 (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR06R2404064748
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
112 pages
Announcement Date:
Aug 19, 2006

Citation Formats

Auchapt, P R, Sautray, R R, and Girard, B R. Solvent purification using a current of water vapour. A continuous process applicable to chemical plants treating irradiated fuels; Purification des solvants par entrainement a la vapeur d'eau. Procede continu applicable aux usines chimiques de traitement des combustibles irradies. France: N. p., 1964. Web.
Auchapt, P R, Sautray, R R, & Girard, B R. Solvent purification using a current of water vapour. A continuous process applicable to chemical plants treating irradiated fuels; Purification des solvants par entrainement a la vapeur d'eau. Procede continu applicable aux usines chimiques de traitement des combustibles irradies. France.
Auchapt, P R, Sautray, R R, and Girard, B R. 1964. "Solvent purification using a current of water vapour. A continuous process applicable to chemical plants treating irradiated fuels; Purification des solvants par entrainement a la vapeur d'eau. Procede continu applicable aux usines chimiques de traitement des combustibles irradies." France.
@misc{etde_20757679,
title = {Solvent purification using a current of water vapour. A continuous process applicable to chemical plants treating irradiated fuels; Purification des solvants par entrainement a la vapeur d'eau. Procede continu applicable aux usines chimiques de traitement des combustibles irradies}
author = {Auchapt, P R, Sautray, R R, and Girard, B R}
abstractNote = {The pilot plant described in this report is intended for the continuous purification of the solvent used in the plutonium extraction plant at Marcoule, by separating the impurities (fission products). This physical separation is operated by carrying over in a water vapour stream. The contaminating products, only slightly volatile, remain in the form of the droplets and are separated; the vaporised solvent and the water vapour used are condensed and then separated. The originality of the installation resides in the system for pulverising the liquid and in the operating conditions: low working pressure and temperature. The systematic analysis of the various parameters (percentage of residue; flow, pressure and temperature ratios etc...) has shown their influence on the decontamination. The activity due to the zirconium-niobium is undetectable after treatment, and it is easy to obtain decontamination factors of 300 for the ruthenium. The, presence of uranium is favorable for the decontamination. As a conclusion, some extra-technical considerations are given concerning in particular the approximate cost price of the treated solvent per litre. (authors) [French] L'installation pilote decrite dans ce rapport est destinee a purifier, en continu, le solvant utilise a l'usine d'extraction du plutonium de Marcoule, en separant les impuretes (produits de fission). Cette separation physique est realisee par entrainement a la vapeur d'eau. Les produits contaminants, peu volatils, restant sous forme de gouttelettes, sont separes; le solvant vaporise ainsi que la vapeur d'entrainement sont condenses puis separes. L'originalite de l'installation reside dans le systeme de pulverisation du liquide et dans les conditions operatoires: faible pression et basse temperature de fonctionnement. L'analyse systematique des differents parametres (pourcentage de residus, rapport de debits, pression et temperature, etc...) a mis en evidence leur influence sur la decontamination. L'activite en zirconium-niobium apres traitement est indecelable et il est facile d'obtenir des facteurs de decontamination de 300 sur le ruthenium. La presence d'uranium favorise la decontamination. Pour terminer, le lecteur trouvera des considerations extra-techniques et en particulier l'ordre de grandeur des prix de revient du litre de solvant traite. (auteurs)}
place = {France}
year = {1964}
month = {Jul}
}