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:
Mar. 13, 1984
Filed:
Apr. 13, 1983
Applicant:
Inventors:
Thomas C Bissot, Newark, DE (US);
Stephen Li, Wilmington, DE (US);
Assignee:
E. I. DuPont DeNemours & Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 98 ; 2041 / ; 2042 / ; 204128 ; 204 48 ;
Abstract
The invention provides an improved process for making an iron-activated cathode for a chloralkali cell, and an improved method for lowering the operating voltage of a chloralkali electrolysis cell, which comprises adding to the cathode compartment of the cell a solution of a water-soluble or caustic-soluble ferrite and passing an electric current through the cell. By virtue of the invention, the hydrogen overvoltage in the cell is lowered, and considerable operating improvement thereby attained.