G - Physics – 21 – F
Patent
G - Physics
21
F
31/84
G21F 9/30 (2006.01)
Patent
CA 1172843
22 49,826 ABSTRACT OF THE DISCLOSURE Disclosed is a method of containing nuclear waste. A composition is first prepared of about 25 to about 80%, calculated as SiO2, of a partially hydrolyzed silicon compound, up to about 30%, calculated as metal oxide, of a partially hydrolyzed aluminum or calcium compound, about 5 to about 20%, calculated as metal oxide, of a partially hydrolyzed boron or calcium compound, about 3 to about 25%, calculated as metal oxide, of a partially hydrolyzed sodium, potassium or lithium compound, an alcohol in a weight ratio to hydrolyzed alkoxide of about 1.5 to about 3% and sufficient water to remove at least 99% of the alcohol as an azeotrope. The azeotrope is boiled off and up to about 40%, based on solids in the product, of the nuclear waste, is mixed into the composi- tion. The mixture is evaporated to about 25 to about 45% solids and is melted and cooled.
395962
Lahoda Edward J.
Pope James M.
Oldham And Company
Scientific Ecology Group Inc. (the)
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