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:
Dec. 31, 1985
Filed:
Jul. 30, 1984
Applicant:
Inventors:
Thomas G Coker, Lexington, MA (US);
Anthony B La Conti, Lynnfield, MA (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 98 ; 204103 ; 204104 ; 204129 ;
Abstract
A process for producing sulfuric acid and caustic soda by the electrolysis of an alkali metal sulfate in a membrane cell having a hydrogen depolarized anode. Hydrogen gas in the anode chamber is oxidized to produce hydrogen cations which combine with the sulfate anions from the aqueous alkali metal sulfate solution to produce sulfuric acid. Alkali metal ions are transported across the membrane to the cathode to produce caustic and gaseous hydrogen. By oxidizing hydrogen at the anode, the cell voltage for the electrolysis of the alkali metal sulfate is substantially reduced.