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:
Sep. 22, 1987
Filed:
Jan. 16, 1985
Applicant:
Inventors:
Ronald Wyndham, Thibodaux, LA (US);
Gervaise M Chaplin, New Delhi, IN;
William M Swanson, Tuscon, AZ (US);
Assignee:
Toth Aluminum Corporation, Metairie, LA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C01F / ; C01F / ;
U.S. Cl.
CPC ...
423135 ; 423136 ; 423496 ;
Abstract
A mixture of an aluminous ore and a carbon source is dried and calcined in the presence of a sulfur-containing compound. The mixture is then chlorinated to produce crude metal chlorides. Aluminum chloride is condensed and separated from the remaining metal chlorides, combined with sulfur and aluminum powder, and sublimated and desublimated so as to produce substantially pure aluminum chloride.