Method of preparing metal element adsorbent and method of...

Details Method of preparing metal element adsorbent and method of... Method of preparing metal element adsorbent and method of...

B - Operations, Transporting

01

J

B01J 20/24 (2006.01) B01J 39/22 (2006.01) C02F 1/62 (2006.01) G21F 9/12 (2006.01)

Patent

CA 2072821

A metal element adsorbent in the form of a hydrogel prepared by treating a condensed tannin with a base, in the presence or absence of an aldehyde so as to avoid precipitation of cross-linked tannin and produce a hydrogel. The inventive adsorbent exhibits high adsorption properties for metal elements and a low flow resistivity when used in a packed column. Methods for use of the inventive adsorbent are disclosed.

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