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. 05, 1978
Filed:
Feb. 14, 1977
Applicant:
Inventors:
Assignees:
Her Majesty the Queen in right of Canada, as represented by the Minister, , US;
Her Majesty the Queen in right of the Province of Alberta, Department, , US;
Ontario Energy Corporation, Toronto, CA;
Imperial Oil Limited, Toronto, CA;
Canada-Cities Service, Ltd., Calgary, CA;
Gulf Oil Canada Limited, Toronto, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 / ;
Abstract
The invention has to do with treatment of dilution centrifuging tailings ch are produced in connection with a hot water extraction operation for recovery of bitumen from oil sands. The tailings are subjected to induced gas flotation for a predetermined period of time to recover contained hydrocarbons as froth.