Alcohol-free alkoxide process for containing nuclear waste

Patent · 01 January 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
• Country of Publication: United States
• Language: English

Related Subjects

/588/501/976/
20
25
30
40
45
80
99
alcohol
alcohol-free
alkoxide
aluminum
azeotrope
based
boiled
boron
calcium
calcium compound
calculated
composition
compound
containing
containing nuclear
cooled
disclosed
evaporated
hydrolyzed
lithium
lithium compound
melted
metal
metal oxide
method
mixed
mixture
nuclear
nuclear waste
oxide
partially
partially hydrolyzed
potassium
prepared
process
product
ratio
remove
silicon
silicon compound
sio
sodium
solids
sufficient
sufficient water
waste
water
weight
weight ratio