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:
Oct. 25, 1983
Filed:
Jan. 20, 1982
Applicant:
Inventors:
Raymond N Yong, Beaconsfield, CA;
Amar J Sethi, Quebec, CA;
Assignee:
Suncor, Inc., Toronto, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436139 ; 436 72 ; 436163 ;
Abstract
Bitumen content of tailings or sludge obtained from processing of tar sands is quickly determined by a two step process wherein (1) clay mineral content is determined by adsorption of methylene blue and this value correlated to adsorbed organic material, (2) the content of total organic material is determined by a chromic acid oxidation, and the difference in these values gives the bitumen content.