Method of Preparing Metal Element Adsorbent and Method of Adsorbing and Separating Metal Element Using the Same
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 element...
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Main Author | |
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Format | Patent |
Language | English French |
Published |
19.02.1994
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Edition | 5 |
Subjects | |
Online Access | Get full text |
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Summary: | 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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Bibliography: | Application Number: CA19922072821 |