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:
Oct. 11, 1977
Filed:
Jul. 16, 1976
Applicant:
Inventors:
Elliott J Roberts, Westport, CT (US);
Stanley Bunk, Glenville, CT (US);
Peter Allen Angevine, Ridgefield, CT (US);
Assignee:
Dorr-Oliver Incorporated, Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
C25C / ;
U.S. Cl.
CPC ...
204 67 ; 423111 ; 2331 / ; 252518 ; 423465 ; 423625 ;
Abstract
Alumina-cryolite waste from aluminum pot lines is subjected to oxidation in a fluidized bed reactor to remove carbon and organic contamination. Agglomeration of the alumina-cryolite product occurs in the fluidized bed and a pellet product suitable for return to the aluminum pot lines is produced.