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:
May. 11, 2021
Filed:
Oct. 10, 2017
Applicant:
Kemira Oyj, Helsinki, FI;
Inventors:
Duane C. Wilson, Marietta, GA (US);
Thomas Fenderson, Decatur, GA (US);
Igal Maasen, Acworth, GA (US);
Sukhjit Aujla, The Woodlands, TX (US);
Assignee:
Kemira Oyj, Helsinki, FI;
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/56 (2006.01); C02F 11/14 (2019.01); C08F 220/56 (2006.01); C08L 33/26 (2006.01); C02F 103/10 (2006.01);
U.S. Cl.
CPC ...
C02F 1/56 (2013.01); C02F 11/14 (2013.01); C08F 220/56 (2013.01); C08L 33/26 (2013.01); C02F 2103/10 (2013.01); C08L 2205/025 (2013.01);
Abstract
The present embodiments generally relate to the use of one or more polymers, e.g., one or more dry acid polymers and/or one or more dry acid polymers with salt, as flocculants, generally for treating tailings, e.g., oil sands tailings, in need of solid-liquid separation, e.g., in order to efficiently recycle water and/or to reduce the volume of tailings which may be transferred to a tailings pond and/or a dedicated disposal area.