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:
Apr. 26, 1983
Filed:
Jun. 22, 1981
Applicant:
Inventors:
Harry S Burney, Jr, Clute, TX (US);
Gary R Gantt, Brazoria, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
204 98 ; 204128 ;
Abstract
Methods of membrane regeneration of permselective ion-exchange membranes of a brine electrolysis cell are greatly improved when the cells are fed brine which contains little or no carbon dioxide, carbonate anions or bicarbonate anions during normal electrolysis and when the methods of membrane regeneration are those wherein at least one liquid solution contacts the membrane and the pH of that solution is below that of the pH of the electrolyte in contact with the membrane during normal electrolysis.