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Title:
METHOD FOR RECOVERING CATALYST MATERIAL, CATALYST MATERIAL RECOVERED BY SAID RECOVERING METHOD, METHOD FOR RECOVERING SUBSTRATE, SUBSTRATE RECOVERED BY SAID RECOVERING METHOD
Document Type and Number:
WIPO Patent Application WO/2004/080596
Kind Code:
A1
Abstract:
A method for recovering a catalyst material from a catalyst structure having a substrate and, formed on at least a part of the surface thereof, a catalyst layer, characterized in that it comprises (a) a step of forming an overcoat layer on the surface of said catalyst layer, (b) a step of placing the catalyst structure having the overcoat layer thereon under conditions wherein the expansion or shrinkage property of said overcoat layer differs from that of said substrate, and in that said catalyst layer is released from said substrate due to the difference of the expansion or shrinkage property caused by said conditions.

Inventors:
Wakita, Hidenobu
Taguchi, Kiyoshi
Fujihara, Seiji
Ukai, Kunihiro
Application Number:
PCT/JP2004/003004
Publication Date:
September 23, 2004
Filing Date:
March 09, 2004
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC INDUSTRIAL CO. LTD. (1006, Oaza Kadoma Kadoma-shi Osaka, 01, 57185, JP)
Wakita, Hidenobu
Taguchi, Kiyoshi
Fujihara, Seiji
Ukai, Kunihiro
International Classes:
B01J38/00; C22B7/00; C22B11/02; B01J23/96; (IPC1-7): B01J38/00
Foreign References:
JPH11158563A
JP2002186862A
JPH1128367A
Other References:
See also references of EP 1609527A1
Attorney, Agent or Firm:
Sumida, Yoshihiro (Arco Patent Office, 3rd Fl. Bo-eki Bldg, 123-1, Higashi-machi, Chuo-ku, Kobe-sh, Hyogo 31, 65000, JP)
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