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. 09, 1977
Filed:
Feb. 11, 1976
Applicant:
Inventor:
Jeffrey D Eng, N. Vancouver, CA;
Assignee:
Hooker Chemicals & Plastics Corporation, Niagara Falls, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 98 ; 204128 ; 204196 ;
Abstract
The voltage drop in a three compartment membrane cell used for the electrolysis of brine is diminished by treatment of the anolyte with acid, preferably hydrochloric acid, lowering the caustic concentration in the buffer zone and decreasing the current density for a period of time, during which the membrane adjacent to the anolyte is rejuvenated, and then resuming normal operations. In a similar manner the voltage drop in a two compartment membrane cell may be reduced, with the lowering of the caustic concentration being effected in the catholyte, preferably by dilution with water.