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. 17, 2017
Filed:
Mar. 20, 2014
Applicant:
The Chemours Company Fc Llc, Wilmington, DE (US);
Inventor:
Robert Harvey Moffett, Landenberg, PA (US);
Assignee:
THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D 3/00 (2006.01); B01J 13/00 (2006.01); E02D 3/12 (2006.01); C04B 28/24 (2006.01); C04B 28/26 (2006.01); C10G 1/04 (2006.01); C02F 11/12 (2006.01); C04B 24/26 (2006.01); C04B 111/00 (2006.01); C02F 103/10 (2006.01);
U.S. Cl.
CPC ...
B01J 13/0056 (2013.01); C02F 11/121 (2013.01); C04B 24/2652 (2013.01); C04B 28/24 (2013.01); C04B 28/26 (2013.01); C10G 1/045 (2013.01); E02D 3/12 (2013.01); C02F 2103/10 (2013.01); C04B 2111/00767 (2013.01); Y02W 30/91 (2015.05); Y02W 30/93 (2015.05);
Abstract
A process for treating a tailings stream comprising water, solids, and optionally polyacrylamide. The process involves (a) contacting the tailings stream with a silicate source for a pre-determined period of time to form a mixture; b) after a pre-determined period of time of at least 5 minutes, contacting the mixture with an activator to initiate gel formation, wherein the gel entraps the solids within the gel; and c) allowing the gel to strengthen and solidify; wherein the gel formation is delayed compared with a non-delayed process.