Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ELECTROLYSIS ELECTRODE AND METHOD FOR PRODUCING AQUEOUS QUATERNARY AMMONIUM HYDROXIDE SOLUTION USING SUCH ELECTROLYSIS ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2006/030685
Kind Code:
A1
Abstract:
Disclosed is an electrolysis electrode with excellent corrosion resistance and durability which can be used for a long time for producing high-purity quaternary ammonium hydroxide by electrolyzing an inorganic acid salt of quaternary ammonium in an electrolysis vessel using a cation exchange membrane as the diaphragm. In addition, this electrolysis electrode contributes to reduce power consumption, thereby enabling to commercially produce high-purity quaternary ammonium hydroxide at low cost. Specifically disclosed is electrolysis electrode which is used when quaternary ammonium hydroxide is produced by electrolyzing an inorganic acid salt of quaternary ammonium in an electrolysis vessel using a cation exchange membrane as the diaphragm. This electrolysis electrode is characterized in that an electrode base made of a conductive metal is coated with an electrode active layer containing an electrode active material, and an intermediate layer made of a mixed oxide composed of an oxide of at least one metal selected from the group consisting of In, Ir, Ta, Ti, Ru and Nb and an Sn oxide is arranged between the electrode base and the electrode active layer.

Inventors:
OHTA YOSHIRO (JP)
CHO TOSHITSURA (JP)
Application Number:
PCT/JP2005/016499
Publication Date:
March 23, 2006
Filing Date:
September 08, 2005
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TAMA CHEMICALS CO LTD (JP)
OHTA YOSHIRO (JP)
CHO TOSHITSURA (JP)
International Classes:
C25B11/04; C25B3/00; B32B7/00; B32B15/01
Foreign References:
JPS5938394A1984-03-02
JPH04254595A1992-09-09
JP2003277965A2003-10-02
JPS6315355B21988-04-04
JPH03271386A1991-12-03
JPH025830B21990-02-06
JPS62260086A1987-11-12
JPS6315355B21988-04-04
US4634509A1987-01-06
JPS5938394A1984-03-02
US4484999A1984-11-27
JPH025830B21990-02-06
US4765879A1988-08-23
EP0707095A11996-04-17
US5679225A1997-10-21
Other References:
See also references of EP 1808512A4
Attorney, Agent or Firm:
Naruse, Katsuo (TKK Nishishinbashi Bldg. 11-5, Nishi-shinbashi 2-chome, Minato-k, Tokyo 03, JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: PROJECTION OPTICAL SYSTEM, PRODUCTION METHOD FOR PROJECTION OPTICAL SYSTEM, EXPOSURE SYSTEM AND EXPO...

Next Patent: HIGH-FREQUENCY HEAT TREATMENT APPARATUS, HIGH-FREQUENCY HEAT TREATMENT PROCESS, AND HIGH-FREQUENCY H...