Title:
ELECTROLYTIC CELL USING GAS DIFFUSION ELECTRODE AND POWER DISTRIBUTION METHOD FOR THE ELECTROLYTIC CELL
Document Type and Number:
WIPO Patent Application WO/2000/060140
Kind Code:
A1
Abstract:
An electrolytic cell using an oxygen cathode, for use in an ion-exchange membrane type electrolytic soda process or the like, the electrolytic cell having; a structure, wherein, for effective supply and discharge of a caustic liquid and for an effective handling of a caustic liquid leakage, provided on an outer-side edge of the electrolytic cell are an upper chamber as a caustic liquid discharge outlet, a lower chamber as a caustic liquid introduction inlet, and a caustic-liquid room frame connected via a caustic liquid passage to thereby reduce a caustic liquid leakage; a structure, wherein a lower gas chamber is provided at the lower outer end of a cathode element to thereby handle a caustic liquid leakage from a gas diffusion electrode to a gas room; or a structure which uses a gas-liquid permeating gas diffusion electrode to supply an oxygen gas from an upper chamber communicating with a gas room and discharge a gas and a caustic liquid into a lower chamber.
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Inventors:
SAKATA AKIHIRO (JP)
SAIKI KOJI (JP)
AIKAWA HIROAKI (JP)
KATAYAMA SHINJI (JP)
YAMAGUCHI KENZO (JP)
SAIKI KOJI (JP)
AIKAWA HIROAKI (JP)
KATAYAMA SHINJI (JP)
YAMAGUCHI KENZO (JP)
Application Number:
PCT/JP2000/001921
Publication Date:
October 12, 2000
Filing Date:
March 28, 2000
Export Citation:
Assignee:
TOAGOSEI CO LTD (JP)
MITSUI CHEMICALS INC (JP)
KANEKA CORP (JP)
CHLORINE ENG CORP LTD (JP)
SAKATA AKIHIRO (JP)
SAIKI KOJI (JP)
AIKAWA HIROAKI (JP)
KATAYAMA SHINJI (JP)
YAMAGUCHI KENZO (JP)
MITSUI CHEMICALS INC (JP)
KANEKA CORP (JP)
CHLORINE ENG CORP LTD (JP)
SAKATA AKIHIRO (JP)
SAIKI KOJI (JP)
AIKAWA HIROAKI (JP)
KATAYAMA SHINJI (JP)
YAMAGUCHI KENZO (JP)
International Classes:
C25B9/19; C25B9/23; C25B15/08; (IPC1-7): C25B11/03; C25B9/10; C25B13/02; C25B13/302
Foreign References:
| FR2711675A1 | 1995-05-05 | |||
| JPH07207482A | 1995-08-08 | |||
| JPH10219488A | 1998-08-18 | |||
| JPH05271974A | 1993-10-19 |
Other References:
See also references of EP 1092789A4
Attorney, Agent or Firm:
Oguri, Shohei (28th Floor ARK Mori Building 12-32, Akasaka 1-chome Minato-ku Tokyo, JP)
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