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:
Feb. 28, 2023
Filed:
Oct. 25, 2019
Applicant:
Syncrude Canada Ltd. IN Trust for the Owners of the Syncrude Project As Such Owners Exist Now and IN the Future, Fort McMurray, CA;
Inventors:
Assignee:
SYNCRUDE CANADA LTD, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/01 (2006.01); B03D 1/02 (2006.01); B03D 1/10 (2006.01); C10G 1/04 (2006.01); B03D 1/002 (2006.01); B03D 1/016 (2006.01); B03D 1/008 (2006.01);
U.S. Cl.
CPC ...
B03D 1/025 (2013.01); B03D 1/002 (2013.01); B03D 1/008 (2013.01); B03D 1/011 (2013.01); B03D 1/016 (2013.01); B03D 1/10 (2013.01); B03D 2201/002 (2013.01); B03D 2201/02 (2013.01); C10G 1/04 (2013.01);
Abstract
A process for treating and dewatering tailings comprising fine clay minerals, fine rock-forming minerals and water is provided, comprising treating the tailings with a sufficient amount of a collector to modify the surface properties of both the fine clays and rock-forming minerals; subjecting the treated tailings to froth flotation to form a fine clays and rock-forming minerals froth layer; and recovering the froth layer and subjecting it to dewatering.