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. 18, 1981
Filed:
Sep. 10, 1979
Applicant:
Inventors:
Charles J Culleiton, Tarentum, PA (US);
Subodh K Das, Apollo, PA (US);
Ronald C Schoener, Colville, WA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
423137 ; 423496 ;
Abstract
Chlorination of aluminous materials such as alumina and bauxite is carried out at 575.degree. to 750.degree. C. in the presence of a solid reducing agent. The reducing agent is a green coke which has been calcined at a temperature between 650.degree. C. and 900.degree. C. for a period of from 10 to 120 minutes.