Published September 26, 1986 | Version v1
Patent Metadata-only

Process and device for conditioning low and medium activity radioactive effluents with hydraulic binders

Creators

Description

Chemical processing of borated radioactive effluents is claimed. Tetrahydrated calcium borate crystals are prepared by lime additions, the volume is reduced by evaporation under reduced pressure and the product obtained is mixed with hydraulic binders

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

Ce nouveau procede de conditionnement, d'effluents radioactifs borates par traitement chimique vise a la preparation de cristaux de borate de calcium tetrahydrate, reduction de volume et malaxage du produit obtenu avec au moins un liant hydraulique, caracterise en ce que l'operation de reduction de volume est realisee par evaporation, sous pression reduite, des solutions et/ou suspensions

Additional details

Additional titles

Original title (French)
Procede et dispositif pour le conditionnement, par liants hydrauliques, d'effluents radioactifs de faible et moyenne activite
Augmented title (English)
Borated effluents

Publishing Information

Imprint Pagination
13 p.
IPC:
Int. Cl. G21f9/16.
IPC
Int. Cl. G21f9/16.
Patent number
FR patent document 2579360/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
19014246
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BORATES; ENCAPSULATION; EVAPORATION; LIQUID WASTES; PRECIPITATION; RADIOACTIVE EFFLUENTS; RADIOACTIVE WASTE PROCESSING
Descriptors DEC
BORON COMPOUNDS; MANAGEMENT; MATERIALS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; SEPARATION PROCESSES; WASTE MANAGEMENT; WASTE PROCESSING; WASTES

Optional Information

Secondary number(s)
FR patent application 8504222.