Global Patent Index - EP 1067217 A1

EP 1067217 A1 2001-01-10 - Method and apparatus for protecting alkali chloride electrolytic cell

Title (en)

Method and apparatus for protecting alkali chloride electrolytic cell

Title (de)

Verfahren und Vorrichtung zum Schützen von Alkalimetall Elektrolysezellen

Title (fr)

Procédé et dispositif pour la protection de cellules d'électrolyse de chlorures alcalins

Publication

EP 1067217 A1 (EN)

Application

EP 00114526 A

Priority

JP 19324299 A

Abstract (en)

A method of protecting an alkali chloride electrolytic cell having a gas diffusion cathode, which comprises, on the occasion when the operation of the electrolytic cell is suspended: stopping feed of an oxygen-containing gas to a gas chamber of the cell; and substantially displacing an oxygen-containing gas atmosphere of the gas chamber with an inert gas atmosphere. Also disclosed is an apparatus for carrying out the method.

IPC 1-7 (main, further and additional classification)

C25B 15/02

IPC 8 full level (invention and additional information)

C25B 15/00 (2006.01); C25B 1/46 (2006.01); C25B 15/02 (2006.01)

CPC (invention and additional information)

C25B 15/02 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE IT

EPO simple patent family

EP 1067217 A1 20010110; CN 1280212 A 20010117; JP 2001020089 A 20010123

INPADOC legal status


2001-12-05 [18W] WITHDRAWN

- Date of withdrawal: 20011012

2001-09-26 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE IT

2001-04-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010209

2001-01-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE IT

2001-01-10 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI