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Title:
ADSORBENTS CARRYING EXTRACTING REAGENTS AND PROCESS FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2005/102512
Kind Code:
A1
Abstract:
Current extraction chromatographic resins, which are materials having both the characteristics of an extracting reagent used in solvent extraction and those of an ion-exchange resin used in ion exchange, have disadvantages of slow transfer of metal ions to the extracting reagent supported on the resin and low utilization of the extracting reagent supported thereon, and the invention provides an adsorbent carrying an extracting reagent which is freed from the disadvantages. The invention relates to an adsorbent for metal ions which is obtained by grafting a polymerizable monomer having the ability to carry an extracting reagent onto the surface of a substrate and making an extracting reagent supported on the obtained product. The functional group having the ability to carry an extracting reagent may be a hydrophobic group (such as alkylamino, alkyl, alkylthiol, or epoxy), a hydrophilic group (such as diol), or a combination of them.

Inventors:
Saito, Kyoichi c/o Department of Applied Chemistry and Biotechnology (Faculty of Engineering Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-sh, Chiba 22, 26385, JP)
Asai, Shiho c/o Japan Atomic Energy Research Institute (2-4 Shirane, Shirakata, Tokai-mura, Naka-gu, Ibaraki 00, 31911, JP)
Sugo, Takanobu c/o Environment Purification Research Institute Inc. (5-2 Shindenmachi, Takasaki-sh, Gunma 33, 37008, JP)
Application Number:
PCT/JP2005/007639
Publication Date:
November 03, 2005
Filing Date:
April 21, 2005
Export Citation:
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Assignee:
NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY (1-33, Yayoi-cho Inage-ku, Chiba-sh, Chiba 22, 26385, JP)
Saito, Kyoichi c/o Department of Applied Chemistry and Biotechnology (Faculty of Engineering Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-sh, Chiba 22, 26385, JP)
Asai, Shiho c/o Japan Atomic Energy Research Institute (2-4 Shirane, Shirakata, Tokai-mura, Naka-gu, Ibaraki 00, 31911, JP)
Sugo, Takanobu c/o Environment Purification Research Institute Inc. (5-2 Shindenmachi, Takasaki-sh, Gunma 33, 37008, JP)
International Classes:
B01J20/285; B01J20/26; B01J20/281; B01J20/32; B01J39/26; B01J41/20; G01N30/88; (IPC1-7): B01J20/26; G01N30/48; G01N30/88
Foreign References:
JPH0435743A1992-02-06
JPH02119937A1990-05-08
JPS5837006A1983-03-04
Attorney, Agent or Firm:
Hayashi, Keisuke (Sonpo Japan Kamata Building 9F, 5-24-2 Kamat, Ota-ku Tokyo52, 14400, JP)
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