The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 1978
Filed:
Feb. 25, 1977
Applicant:
Inventors:
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 98 ; 204128 ;
Abstract
In an electrolytic cell having cation exchange membrane as diaphragm to partition said cell into cathode and anode chambers, electrolysis of an electrolyte aqueous solution is conducted while generating gas from anode by keeping the inner pressure in cathode chamber higher than that in anode chamber. Some disadvantages caused in the case of electrolyzing an aqueous alkali metal halide solution to form alkali metal hydroxide in cathode chamber are overcome by adjusting the anolyte at pH <3.5. The electrolytic cell preferably employable for the present process is also disclosed.