Recovery of uranium by tannin immobilized on matrices which have amino group
作者:
Akira Nakajima,
Takashi Sakaguchi,
期刊:
Journal of Chemical Technology&Biotechnology
(WILEY Available online 1990)
卷期:
Volume 47,
issue 1
页码: 31-38
ISSN:0268-2575
年代: 1990
DOI:10.1002/jctb.280470105
出版商: John Wiley&Sons, Ltd.
关键词: immobilized tannin;uranium recovery;polyvinyl‐s‐triazine
数据来源: WILEY
摘要:
AbstractTannin, which contains polyhydroxy groups, has a high affinity for uranium. Various tannin–protein complexes were prepared to develop new adsorbents for uranium recovery from seawater. Albumin tannate has a high ability to adsorb uranium from seawater. Tannin was immobilized on matrices which have multiple active amino groups, such as aminopolystyrene and poly(vinyl‐4,6‐diamino‐s‐triazine)—poly VT. Of these complexes, tannin immobilized on poly VT adsorbed uranium most efficiently from seawater and highly selectively from a solution containing various heavy metals; the uranium adsorption was very rapid and was pH dependent. This adsorbent therefore appears to have potential for use in a commercial process for uranium recovery from seawater or from uranium‐containin
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