Alcohol-free alkoxide process for containing nuclear waste

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:864865

Pope, James M.; Lahoda, Edward J.

Disclosed is a method of containing nuclear waste. A composition is first prepared of about 25 to about 80%, calculated as SiO.sub.2, 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 composition. The mixture is evaporated to about 25 to about 45% solids and is melted and cooled.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC08-76NV00597
• Assignee: United States of America as represented by U.S. Department of Energy (Washington, DC)
• Patent Number(s): 4,430,257
• Application Number: 06/272,852
• OSTI ID: 864865
• Resource Relation: Patent File Date: 1981 Jun 12
• Country of Publication: United States
• Language: English

Related Subjects

alcohol-free
alkoxide
process
containing
nuclear
waste
disclosed
method
composition
prepared
25
80
calculated
sio
partially
hydrolyzed
silicon
compound
30
metal
oxide
aluminum
calcium
20
boron
sodium
potassium
lithium
alcohol
weight
ratio
sufficient
water
remove
99
azeotrope
boiled
40
based
solids
product
mixed
mixture
evaporated
45
melted
cooled
partially hydrolyzed
silicon compound
sufficient water
metal oxide
nuclear waste
calcium compound
weight ratio
lithium compound
containing nuclear
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