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. 07, 1976
Filed:
Jan. 06, 1975
Applicant:
Inventors:
William C Ziegenhain, Ponca City, OK (US);
David V Porchey, Ponca City, OK (US);
Ralph T Ferrell, Norman, OK (US);
Assignee:
Continental Oil Company, Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
423628 ; 423630 ; 252463 ;
Abstract
Alumina having improved color characteristics and improved extrusion properties is produced by an improvement in the process for producing low-density, high-porosity, high-surface area alumina from an aqueous alumina slurry by contacting said aqueous alumina slurry with an effective amount of an organic solvent to form a solvent-aqueous alumina mixture; drying said mixture and recovering said low-density, high-porosity, high-surface area alumina, comprising drying said solvent-aqueous alumina mixture in an inert atmosphere.