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Title: Method of handling radioactive alkali metal waste

Patent ·
OSTI ID:863723

Radioactive alkali metal is mixed with particulate silica in a rotary drum reactor in which the alkali metal is converted to the monoxide during rotation of the reactor to produce particulate silica coated with the alkali metal monoxide suitable as a feed material to make a glass for storing radioactive material. Silica particles, the majority of which pass through a 95 mesh screen or preferably through a 200 mesh screen, are employed in this process, and the preferred weight ratio of silica to alkali metal is 7 to 1 in order to produce a feed material for the final glass product having a silica to alkali metal monoxide ratio of about 5 to 1.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4234449
OSTI ID:
863723
Country of Publication:
United States
Language:
English