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U.S. Department of Energy
Office of Scientific and Technical Information

Dry method for recycling iodine-loaded silver zeolite

Patent ·
OSTI ID:6537212

Fission product iodine is removed from a waste gas stream and stored by passing the gas stream through a bed of silver-exchanged zeolite until the zeolite is loaded with iodine, passing dry hydrogen gas through the bed to remove the iodine and regenerate the bed, and passing the hydrogen stream containing the hydrogen iodide thus formed through a lead-exchanged zeolite which absorbs the radioactive iodine from the gas stream and permanently storing the lead-exchanged zeolite loaded with radioactive iodine.

Assignee:
Dept. of Energy
Patent Number(s):
US 4088737
OSTI ID:
6537212
Country of Publication:
United States
Language:
English