Compositions – Absorptive – or bindive – and chemically yieldive
Patent
1986-05-22
1988-10-25
Lechert, Jr., Stephen J.
Compositions
Absorptive, or bindive, and chemically yieldive
20419211, 20419215, 20419234, 210679, 210682, 252626, 252629, 252631, 264 59, 264 63, 502 11, 502407, 502413, 502414, 502416, 502429, C01B 3116, G21F 916, G21F 908, C04B 3332
Patent
active
047802391
ABSTRACT:
Disclosed is a method of making an ion exchange material. A ceramic material is ion implanted with sulfur, carbon, phosphorus, or nitrogen, which is oxidized to sulfate, carboxylate or carbonate, phosphate, or nitrate, respectively, or the nitrogen is reduced to amine amide. Alternatively, a mixture of ceramic powder and a binder containing sulfur, carbon, phosphorus, or nitrogen is heated in a nonoxidizing atmosphere to a temperature up to 1000.degree. C. The sulfur is then oxidized to sulfate, the carbon to carboxylate or carbonate, phosphorus to phosphate, and nitrogen to nitrate, or the nitrogen is reduced to amine or amide. Also disclosed is an ion exchange material made by these methods and a method of treating acidic aqueous solutions containing dissolved radioactive materials by passing them through an ion exchange column containing the ion exchange material.
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Burgman Herbert A.
Nahemow Martin D.
Snyder Thomas S.
Lechert Jr. Stephen J.
Locker Howard J.
Morrison Joyce L.
Westinghouse Electric Corp.
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