Insoluble chelating compositions

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Radioactive metal

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423 18, 423 20, 210682, 210912, 525 541, B07C 536, B07B 1305

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active

046264167

ABSTRACT:
The present invention relates to insoluble compositions, which are capable of removing metal (e.g. selectively) from solution (e.g. Fe.sup.3+ from a liquid nutrient medium so as to lower the Fe.sup.3+ content to less than 0.1 .mu.M); the insoluble compositions comprise: a suitable insoluble carrier and organic co-ordinating sites covalently fixed to the surface of said carrier, said co-ordinating sites being capable of chelating Fe.sup.3+, Th.sup.4+ and/or UO.sub.2.sup.2+.

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