Method of removing carbon-14 from particulate, ion exchange...

Details Method of removing carbon-14 from particulate, ion exchange... Method of removing carbon-14 from particulate, ion exchange...

B - Operations, Transporting

01

J

362/36

B01J 49/00 (2006.01)

Patent

CA 1250378

TITLE A METHOD OF REMOVING CARBON-14 FROM PARTICULATE, TON EXCHANGE RESIN INVENTORS L.P. Buckley, B.L. Woods and W.J. Ward ABSTRACT Carbon-14 is removed from particulate ion exchange resin by contacting, preferably at 70°C, a bed of the resin with a stream of air, enriched with carbon dioxide, while the particulate ion exchange resin is in contact with water to displace the carbon-14 as gaseous carbon dioxide, and then scrubbing the gaseous carbon dioxide with soluble salts of calcium or barium, e.g. calcium hydroxide and barium hydroxide, to form, as a stable, carbon-14 containing compound, either calcium carbonate or barium carbonate. The gaseous carbon dioxide may be contacted with an aqueous solution of sodium and barium chloride to form the stable, carbon-14 containing compound which may be immobilized in cement.

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