Patent ID: 7090827
Filing Date: 2006-08-15
Classification: C03B,C03C,G21F,Y10S

Abstract:
1. A process for immobilizing metallic sodium in glass form, comprising the steps of: (A) introducing the following constituents, (i), (ii) and (iii) into a reactor:  said constituents (i), (ii) and (iii) being introduced into the reactor in a dispersed form; (B) producing, by bringing constituents (i), (ii) and (iii) in dispersed form into contact with each other within the reactor, a homogeneous mixture of these constituents; (C) heating the mixture obtained to a temperature of between 1000 and 1600° C., whereby a homogeneous mixture in the molten state is formed, in which the sodium initially introduced is in the sodium oxide state; and (D) recovering the molten mixture thus obtained and cooling it, whereby a vitrified matrix of homogeneous composition is obtained that incorporates the initially introduced sodium as constituent oxide of the said vitrified matrix.