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:
Aug. 05, 2025
Filed:
Oct. 11, 2022
Applicant:
Syncrude Canada Ltd. IN Trust for the Owners of the Syncrude Project As Such Owners Exist Now and IN the Future, Calgary, CA;
Inventors:
Barry Bara, Edmonton, CA;
Randy Mikula, Edmonton, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 11/147 (2019.01); B01D 21/24 (2006.01); C02F 1/52 (2023.01); C02F 1/56 (2023.01); C02F 11/145 (2019.01); C10G 1/04 (2006.01); F17D 1/08 (2006.01); B01D 21/01 (2006.01); C02F 103/10 (2006.01); F17D 3/16 (2006.01);
U.S. Cl.
CPC ...
C02F 11/147 (2019.01); B01D 21/245 (2013.01); C02F 1/52 (2013.01); C02F 1/56 (2013.01); C02F 11/145 (2019.01); C10G 1/04 (2013.01); F17D 1/088 (2013.01); B01D 21/01 (2013.01); C02F 2103/10 (2013.01); C02F 2209/40 (2013.01); F17D 3/16 (2013.01);
Abstract
A process for dewatering tailings having a solids content in the range of about 10 wt % to about 70 wt % is provided comprising fully flocculating the tailings by adding an effective amount of a polymeric flocculant to the tailings and mixing the polymeric flocculant and tailings in a mixing device to form fully flocculated tailings having a minimized capillary suction time (CST) and discharging the fully flocculated tailings into a deposition area at a discharge velocity of substantially zero to minimize further mixing.