Title:
PROTECTING METHOD OF ION EXCHANGE MEMBRANE
Document Type and Number:
Japanese Patent JPS6043495
Kind Code:
A
Abstract:
PURPOSE:To prevent deformation of a thin ion exchange membrane with an ion exchange membrane type electrolytic cell for electrolyzing an aq. alkali chloride soln. by incorporating a cloth consisting of a specific material on the surface of the ion exchange membrane covering electrodes except the twinned electrdoe sur faces. CONSTITUTION:A conventional asbestos diaphragm electrolytic cell which produces NaOH and gaseous Cl by electrolyzing an aq. NaCl soln. is modified to an ion exchange membrane type electrolytic cell which produces NaOH having excellent quality. The ion exchange membrane incorporated with 5-90wt% per 1cm<2> cloth of 10-200 mesh constituted of a fluororesin such as PP, polytetrafluoroethylene, tetrafluoroethylene/hexafluoroethylene or the like is used in the ion exchange membrane on the surface of the ion exchange membrane covering the cage-type or finger-shaped electrodes except the surface of the twinned electrodes facing each other. Deformation is obviated by the incorporation of the above-mentioned cloth even if the membrane is thin.
Inventors:
YAMAGATA HIROSHI
ICHIMURA TAKASHI
ICHIMURA TAKASHI
Application Number:
JP14964483A
Publication Date:
March 08, 1985
Filing Date:
August 18, 1983
Export Citation:
Assignee:
ASAHI GLASS CO LTD
International Classes:
C25B1/46; C25B9/19; (IPC1-7): C25B1/46; C25B9/00
Attorney, Agent or Firm:
Akira Uchida