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:
Jul. 06, 1993
Filed:
Sep. 24, 1991
Applicant:
Inventors:
Davis S Poa, Naperville, IL (US);
R Dean Pierce, Naperville, IL (US);
Thomas P Mulcahey, Downers Grove, IL (US);
Gerald K Johnson, Downers Grove, IL (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ; C25C / ;
U.S. Cl.
CPC ...
204 / ; 204 67 ; 204 69 ; 204130 ; 2042 / ; 204252 ; 204294 ; 204295 ;
Abstract
An electrolytic process and apparatus for reducing calcium oxide in a molten electrolyte of CaCl.sub.2 -CaF.sub.2 with a graphite anode in which particles or other contamination from the anode is restricted by the use of a porous barrier in the form of a basket surrounding the anode which may be removed from the electrolyte to burn the graphite particles, and wherein the calcium oxide feed is introduced to the anode compartment to increase the oxygen ion concentration at the anode.