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. 26, 1987
Filed:
Aug. 22, 1985
Applicant:
Inventor:
Rabinder S Datta, Pittsburgh, PA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B02C / ; B02C / ;
U.S. Cl.
CPC ...
241 16 ; 241 20 ; 241 21 ; 241 24 ; 241 29 ;
Abstract
A process for grinding organic-containing mineral matter, particularly oil shale, is disclosed comprising a series of increasing finer grind-producing grinding steps, each followed by an organic beneficiation step. A portion of the organic-enhanced beneficiation product is mixed with each successive grinding step feed.