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:
May. 17, 1994
Filed:
Dec. 09, 1992
Applicant:
Inventors:
George E Gantt, Milledgeville, GA (US);
Thomas J Adkisson, Macon, GA (US);
Preston B Gladin, Milledgeville, GA (US);
Randall E Ussery, Jr, Gordon, GA (US);
Assignee:
Engelhard Corporation, Iselin, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03B / ; B03B / ; B04C / ; B03D / ;
U.S. Cl.
CPC ...
209-4 ; 209-5 ; 209-9 ; 209 10 ; 209 47 ; 209164 ; 209166 ; 494 37 ; 106486 ; 106487 ; 501149 ;
Abstract
Separation of impurities from kaolin clay is accomplished by conditioning a dispersed aqueous pulp of the clay with an anionic flotation collector, followed by centrifugation or hydrocloning to cause the impurities to settle from a dispersed pulp of the clay without an intermediate froth flotation step or a flotation waste froth is centrifuged or hydrocloned to recover valuable kaolin contained in the froth.