Published February 4, 1975 | Version v1
Patent Metadata-only

A method for improving the extraction properties of a tributyl-phosphate solution

Creators

Description

The invention relates to the regeneration of the properties of TBP as a solvent for extracting uranium and plutonium. That regeneration method comprises the steps of contacting the TBP solution containing degradation products with an esterifying agent (the degradation products are esterified into triesters) and of recycling the TBP solution containing such triesters. Such a regeneration method leads, in particular, to an improved recovery of plutonium from nuclear fuels

Abstract (French)

L'invention concerne la regeneration des caracteristiques du phosphate de tributyle en tant que solvant d'extraction d'uranium et de plutonium. Ce procede de regeneration comprend la mise en contact de la solution de phosphate de tributyle contenant les produits de degradation avec un agent esterifiant, transformant les produits de degradation en triesters, et le recyclage de la solution de phosphate de tributyle contenant les triesters. Cette regeneration permet notamment une meilleure recuperation de plutonium a partir de combustibles nucleaires

Additional details

Additional titles

Original title (French)
Procede permettant d'ameliorer les caracteristiques d'extraction d'une solution de phosphate de tributyle
Augmented title (English)
fuel reprocessing

Publishing Information

Imprint Pagination
9 p.
IPC:
Int. Cl. C07f9/11; G21c19/46.
IPC
Int. Cl. C07f9/11; G21c19/46.
Patent number
FR patent document 2259834/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
7267893
Subject category
S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
DBP; ESTERIFICATION; PHOSPHORIC ACID; PUREX PROCESS; SOLVENT EXTRACTION; TBP
Descriptors DEC
BUTYL PHOSPHATES; CHEMICAL REACTIONS; ESTERS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORIC ACID ESTERS; PHOSPHORUS COMPOUNDS; REPROCESSING; SEPARATION PROCESSES

Optional Information

Notes
Available from Institut National de la Propriete Industrielle, Paris (France); priority claim: 5 Feb 1974, USA.