Polymer product for the selective absorption of dissolved ions

Details Polymer product for the selective absorption of dissolved ions Polymer product for the selective absorption of dissolved ions

C - Chemistry, Metallurgy

08

F

18/13, 362/41, 4

C08F 126/02 (2006.01) B01J 20/28 (2006.01) C01C 3/11 (2006.01) C02F 1/42 (2006.01) C08J 9/42 (2006.01) C22B 11/08 (2006.01)

Patent

CA 2023387

ABSTRACT OF THE DISCLOSURE A water-swellable polymer product which may be physically bound to an open celled cellulosic sponge is produced by thermally induced amide-forming insolubilization of polyethyleneimine (PEI). The polymer product has high affinity for the absorption of transition metal ions. A cellulosic sponge containing a high add-on of the polymer product is permeable to water and substantially unaffected by water-borne suspended matter.

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