Title:
PHOTORESPONSIVE COPPER ION ADSORBENT MATERIAL AND PROCESS FOR RECOVERY OF COPPER IONS
Document Type and Number:
WIPO Patent Application WO/2010/029778
Kind Code:
A1
Abstract:
A photoresponsive copper ion adsorbent material containing a copolymer which is obtained by copolymerization of a monomer component containing both a photoresponsive compound exhibiting reversible metal ion adsorption-desorption transition in dependence of light in a metal ion solution and a quaternized amine compound, wherein the copolymer can selectively adsorb copper(II) ions in a dark place from a metal ion solution containing chloride ions, sodium ions, and copper(II) ions. Thus, only copper(II) ions can be adsorbed selectively among metal ions, and recovered through desorption.
Inventors:
SUZUKI TAKAYUKI
Application Number:
PCT/JP2009/054201
Publication Date:
March 18, 2010
Filing Date:
March 05, 2009
Export Citation:
Assignee:
UNIV TOKYO DENKI (JP)
SUZUKI TAKAYUKI
SUZUKI TAKAYUKI
International Classes:
B01J20/26; B01D15/00; B01J39/20
Foreign References:
| JP2007205924A | 2007-08-16 | |||
| JP2007268444A | 2007-10-18 | |||
| JP2005103534A | 2005-04-21 |
Other References:
YUKI HIRAHARA ET AL.: "Spiropyran -4 Kyuka Amin Kyojugotai no Ensui Chu ni Okeru Sentakuteki Kinzoku Ion Kyuchaku", CSJ: THE CHEMICAL SOCIETY OF JAPAN KOEN YOKO, vol. 88, no. 1, 12 March 2008 (2008-03-12), pages 576
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)
Hidekazu Miyoshi (JP)
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