Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Radioactive metal
Reexamination Certificate
2005-12-13
2005-12-13
Bos, Steven (Department: 1754)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Radioactive metal
C423S021500
Reexamination Certificate
active
06974563
ABSTRACT:
Inorganic ion exchange materials for the separation of90Y from90Sr include clinoptilolite, potassium titanosilicate pharmacosiderite, sodium titanosilicate and sodium nonatitanate. These materials are suitable for making a90Y generator that contains90Sr immobilized on an ion exchange column of the materials. The materials have a very high selectivity for90Sr, a very low selectivity for90Y, good radiation and thermal stability, low toxicity, fast reaction kinetics, and can be readily and reproducibly synthesized. A method is thus provided for eluting90Y from the ion exchange material with an aqueous solution to obtain a carrier-free solution of90Y.
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Bos Steven
Campigotto Frank J.
Lynntech Inc.
Streets Jeffrey L.
Streets & Steele
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