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:
Aug. 03, 1982
Filed:
Nov. 24, 1980
Applicant:
Inventor:
Robert T Lewis, Albany, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; B01D / ; B03C / ; B03C / ;
U.S. Cl.
CPC ...
208 / ; 208177 ; 2082 / ; 209-8 ; 209 11 ; 209 39 ; 209 40 ; 209214 ; 210222 ; 210695 ;
Abstract
Oil shale mineral solids are separated from a fluid such as retorted shale oil by heating the mineral solids to a temperature above about 480.degree. C. and above the magnetic transformation temperature of at least a portion of the solids. The temperature of the solids is maintained above 480.degree. C. for no longer than about one minute, and the solids are magnetically separated. High gradient magnetic separation techniques are preferred.
Lewis, Robert. (1982). Magnetic separation of mineral particles from shale oil (U.S. Patent No. 4342640). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4342640
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile