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. 31, 1983
Filed:
May. 14, 1981
Applicant:
Inventor:
Ardis L Anderson, Ponca City, OK (US);
Assignee:
Conoco Inc., Ponca City, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07G / ; C07G / ;
U.S. Cl.
CPC ...
208 / ; 208 / ; 208131 ;
Abstract
Bitumen contained in tar sands is extracted in a primary extraction step which produces a bitumen-containing froth. A hydrogen donor diluent solvent is added to the froth, and the froth-solvent mix is subjected to a desalting operation. A bitumen-solvent product from the desalting step is subjected to a coking operation. In one embodiment, a delayed coker is used, and a gas oil fraction from the coker overhead vapors in hydrogenated and used as the donor solvent in the desalting step.
Anderson, Ardis. (1983). Process for recovery of bitumen from tar sands (U.S. Patent No. 4385982). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4385982
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile