Title:
PALLADIUM ION ADSORBENT AND METHOD FOR SEPARATING AND RECOVERING PALLADIUM USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/021696
Kind Code:
A1
Abstract:
Provided are a palladium ion adsorbent for solid-liquid adsorption which has both the extraction performance and selectivity of a palladium extractant for liquid-liquid extraction used in conventional solvent extraction methods and which does not require the use of any organic solvent and a method for selectively separating and recovering palladium using the adsorbent. Palladium is selectively separated and recovered using a palladium ion adsorbent comprising an amide-containing cyclic sulfide compound represented by general formula (1) or (2) or a palladium ion adsorbent comprising a support and, immobilized thereon, an amide-containing cyclic sulfide compound represented by general formula (1) or (2). [In formula (1), Rs each independently represents a hydrogen atom, methyl, ethyl, a C3-30 linear or branched hydrocarbon group, a C3-10 alicyclic hydrocarbon group, or a C6-14 aromatic hydrocarbon group; m is 1 or 2; ns each independently is an integer of 1-12; and Ls each independently represents a methylene group, an ethylene group, a C3-8 alkylene, or a C6-14 arylene.] [In formula (2), Rs each independently represents a hydrogen atom, methyl, ethyl, a C3-30 linear or branched hydrocarbon group, a C3-10 alicyclic hydrocarbon group, or a C6-14 aromatic hydrocarbon group; ns each independently is an integer of 1-4; and Ls each independently represents a methylene group, an ethylene group, a C1-8 alkylene, or a C6-14 arylene.]
Inventors:
SUDO YUKINORI (JP)
Application Number:
PCT/JP2010/064104
Publication Date:
February 24, 2011
Filing Date:
August 20, 2010
Export Citation:
Assignee:
TOSOH CORP (JP)
SUDO YUKINORI (JP)
SUDO YUKINORI (JP)
International Classes:
B01J20/22; B01J20/34; B01J23/96; B01J38/00; C07D285/00; C22B3/24; C22B11/00; C22B7/00
Domestic Patent References:
| WO2005083131A1 | 2005-09-09 |
Foreign References:
| JPH06192247A | 1994-07-12 | |||
| JPH09279264A | 1997-10-28 | |||
| JPH05105973A | 1993-04-27 | |||
| JP2009192466A | 2009-08-27 | |||
| JP2009192467A | 2009-08-27 |
Other References:
ISMAIEL A.A.A. ET AL: "Template synthesis and characterization of mono, and homobi-nuceating mixed dithiatetraazamacrocycric complexes", POLYHEDRON, vol. 20, no. 5, 2001, pages 455 - 459, XP008154086
BARCLAY T.M. ET AL.: "Isolation and characterization of an unusually stable formamidinium-containing macrotricyclic complex of lithium ion formed during the synthesis of 14-thia-1,4,8,11-tetraaza-bicyclo[9,5,3] nonadecane", CANADIAN JOURNAL OF CHEMISTRY, vol. 85, no. 7/8, 2007, pages 506 - 512, XP008161514
See also references of EP 2468397A4
BARCLAY T.M. ET AL.: "Isolation and characterization of an unusually stable formamidinium-containing macrotricyclic complex of lithium ion formed during the synthesis of 14-thia-1,4,8,11-tetraaza-bicyclo[9,5,3] nonadecane", CANADIAN JOURNAL OF CHEMISTRY, vol. 85, no. 7/8, 2007, pages 506 - 512, XP008161514
See also references of EP 2468397A4
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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