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. 30, 1980
Filed:
Sep. 17, 1979
Lloyd Trevoy, Edmonton, CA;
Alvin Maskwa, Edmonton, CA;
Petro-Canada Exploration Inc., Calgary, CA;
Her Majesty the Queen in right of the Province of Alberta, Government of, , US;
PanCanadian Petroleum Limited, Calgary, CA;
Esso Resources Canada Ltd., Calgary, CA;
Canada-Cities Service, Ltd., Calgary, CA;
Gulf Canada Resources Inc., Calgary, CA;
Abstract
The titanium and zirconium-based minerals, present in the first stage centrifuge tailings from the hot water process for extraction of bitumen from bituminous sands, may be concentrated by a dry screening process. The tailings are burned off to provide a dry, essentially carbon-free, mineral mixture. By screening the mixture into three streams of different particle size range, silica and clays may be rejected as coarse and fine materials respectively, while titanium and zirconium minerals may be concentrated in the intermediate stream. The titanium and zirconium concentrate stream may be advanced to high tension and magnetic separation steps known in conventional processing of heavy minerals, for further beneficiation.