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Title:
METHOD FOR SOLIDIFYING AND STABILIZING A CONCENTRATED AQUEOUS SODIUM HYDROXIDE SOLUTION
Document Type and Number:
WIPO Patent Application WO2006082346
Kind Code:
A3
Abstract:
The invention concerns a method for solidifying and stabilizing a concentrated aqueous sodium hydroxide solution, characterized in that it includes the following steps: a) mixing with said sodium hydroxide solution, a hydraulic binder containing blast-furnace slag, in the presence of at least one additional source of calcium ions and/or magnesium ions and/or silica to form a slurry; b) allowing the slurry to cake to obtain a solid product. The invention also concerns the solid product obtained by implementing the inventive method. The invention is applicable to the treatment of radioactive sodium hydroxide solutions or contaminated by other pollutants.

Inventors:
JACQUEMMOZ CHRISTIAN (FR)
JEANPIERRE ALAIN (FR)
TEIXEIRA FILIPE (FR)
COJAN JEAN-YVES (FR)
VERSCHLIERE DAVID (FR)
LEDOYEN FABRICE (FR)
Application Number:
PCT/FR2006/050097
Publication Date:
September 28, 2006
Filing Date:
February 03, 2006
Export Citation:
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Assignee:
INERTEC (FR)
JACQUEMMOZ CHRISTIAN (FR)
JEANPIERRE ALAIN (FR)
TEIXEIRA FILIPE (FR)
COJAN JEAN-YVES (FR)
VERSCHLIERE DAVID (FR)
LEDOYEN FABRICE (FR)
International Classes:
C04B28/16; C04B28/08; G21F9/16
Foreign References:
EP0709859A11996-05-01
EP0831498A11998-03-25
EP1137014A12001-09-26
EP1367032A12003-12-03
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 12 12 December 2002 (2002-12-12)
DATABASE WPI Section Ch Week 198747, Derwent World Patents Index; Class K07, AN 1987-332020, XP002351351
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