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Title:
PEROXIDE-DEGRADING CATALYST
Document Type and Number:
WIPO Patent Application WO/2007/000956
Kind Code:
A1
Abstract:
Disclosed is a catalyst capable of degrading a peroxide at a low temperature, at low cost and with good efficiency, without causing the generation of free radical. A peroxide-degrading catalyst containing a base metal atom, the catalyst having a value A which represents an amount of free radical generation represented by Formula 1 of 0.20 or lower and a value B which represents a reaction rate represented by Formula 2 of 60 or higher. A = (Mw(S)/Mw) - 1 (Formula 1) wherein Mw represents a weight average molecular weight of poly(sodium 4-styrenesulfonate) determined after the hydrogen peroxide degradation test performed at 80ºC in the presence of the poly(sodium 4-styrenesulfonate); and Mw(S) represents a weight average molecular weight of the poly(sodium 4-styrenesulfonate) determined before the test; and B = N(po)/N(cat) (Formula 2) wherein N(po) represents the number of moles of hydrogen peroxide degraded during the period of 20 minutes in the hydrogen peroxide degradation test as defined with respect to Formula 1; and N(cat) represents the number of moles of the catalyst used in the test in terms of the metal atom.

Inventors:
ISHIYAMA TAKESHI (JP)
HIGASHIMURA HIDEYUKI (JP)
TAKIGAWA HIROSHI (JP)
Application Number:
PCT/JP2006/312677
Publication Date:
January 04, 2007
Filing Date:
June 20, 2006
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
ISHIYAMA TAKESHI (JP)
HIGASHIMURA HIDEYUKI (JP)
TAKIGAWA HIROSHI (JP)
International Classes:
B01J31/22; G01N31/10
Foreign References:
JP2005056776A2005-03-03
JP2003340287A2003-12-02
JPH10508050A1998-08-04
JP2000230076A2000-08-22
JP2005071760A2005-03-17
JP2005019232A2005-01-20
JP2001118591A2001-04-27
JP2003123777A2003-04-25
JP2005135651A2005-05-26
JP2004327074A2004-11-18
JP2005063902A2005-03-10
JPH06154619A1994-06-03
JP2004296425A2004-10-21
Other References:
OISHI N. ET AL.: "Catalytic activity of binuclear manganese(III) complexes for the decomposition of hydrogenperoxide", CHEM. LETT., no. 3, 1982, pages 409 - 410, XP003002998
SALEM I.A. ET AL.: "Kinetics and Mechanisms of Decomposition Reaction of Hydrogen Peroxide in Presence of Metal Complexes", INT. J. CHEM. KINET., vol. 32, no. 11, 2000, pages 643 - 666, XP003002999
See also references of EP 1908520A4
HELMUT SIGEL ET AL., INORG. CHEM., vol. 18, 1979, pages 1354
D.T. GOKAK; B.V. KAMATH; R.L. RAM, J. APPL. POLYM. SCI, vol. 35, 1988, pages 1523
ELIZADETH A. LEWIS; WILLIAM B.TOLMAN, CHEM. REV., vol. 104, 2004, pages 1047
VICKIE MCKEE ET AL., J.AM.CHEM.SOC., vol. 106, 1984, pages 4765
P.J.PESSIKI; S.V.KHANGULOV, D.M.H; G.C.DISMUKES, J.AM.CHEM.SOC., vol. 116, 1994, pages 891
MASARU SATO; YUTAKA MORI; TAKEAKI IIDA, SYNTHESIS, 1992, pages 539
WILLIAM H.ARMSTRONG; J.LIPPARD, INORG.CHEM., vol. 24, 1985, pages 981
J. APPL. POLYM. SCI, vol. 35, 1988, pages 1523
Attorney, Agent or Firm:
ENOMOTO, Masayuki et al. (Limited 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka, JP)
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