Title:
METHOD OF SEALING WATER SOLUTION OF NUCLEAR WASTE
Document Type and Number:
Japanese Patent JPS5754900
Kind Code:
A
Abstract:
Method of encapsulating a solution of nuclear waste, where the nuclear waste is at least 10% sodium or nitrate. A composition is prepared in an alcohol of from 1 to 99% of a silicon alkoxide and from 1 to 99% of a boron alkoxide. The pH of the nuclear waste solution is adjusted to from 4 to 6 and the pH of the composition is adjusted to match. The composition is dried to from 50 to 75% of its original volume and is mixed with up to about 30% of the solution of nuclear waste, thereby forming a gel. The mixture is dried and heated at up to about 500 DEG C. Finally, it is consolidated either by warm pressing at from 400 to 800 DEG C at from 40,000 to 100,000 psi, or by melting at from 700 to 1150 DEG C.
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Inventors:
RONARUDO UEZURII CHITSUKARINGU
PURENTO EATAAKU YORUDASU
BURUUSU HAAMON NIYUUMAN
PURENTO EATAAKU YORUDASU
BURUUSU HAAMON NIYUUMAN
Application Number:
JP12483181A
Publication Date:
April 01, 1982
Filing Date:
August 11, 1981
Export Citation:
Assignee:
WESTINGHOUSE ELECTRIC CORP
International Classes:
G21F9/06; G21F9/00; G21F9/16; G21F9/30; (IPC1-7): G21F9/06; G21F9/16