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. 18, 2020
Filed:
Dec. 12, 2017
Applicant:
Ifp Energies Nouvelles, Rueil-Malmaison, FR;
Inventors:
Jean-Francois Argillier, Rueil-Malmaison, FR;
Antoine Benoit, Maule, FR;
Isabelle Henaut, Rueil-Malmaison, FR;
Assignee:
IFP ENERGIES NOUVELLES, Rueil-Malmaison, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/44 (2006.01); G01N 11/02 (2006.01); G01N 33/24 (2006.01); B01D 69/02 (2006.01); B01D 71/02 (2006.01); B01D 71/06 (2006.01); C09K 8/584 (2006.01); C10G 49/22 (2006.01); G01N 13/02 (2006.01); C10G 33/00 (2006.01); B01D 17/00 (2006.01); B01D 17/12 (2006.01); C02F 103/36 (2006.01); G01N 11/00 (2006.01); C02F 101/32 (2006.01); E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
C02F 1/44 (2013.01); B01D 17/085 (2013.01); B01D 17/12 (2013.01); B01D 69/02 (2013.01); B01D 71/022 (2013.01); B01D 71/06 (2013.01); C09K 8/584 (2013.01); C10G 33/00 (2013.01); C10G 49/22 (2013.01); G01N 11/02 (2013.01); G01N 13/02 (2013.01); G01N 33/241 (2013.01); B01D 2315/08 (2013.01); B01D 2315/10 (2013.01); B01D 2325/02 (2013.01); C02F 2101/32 (2013.01); C02F 2103/365 (2013.01); E21B 43/16 (2013.01); G01N 2011/006 (2013.01); G01N 2013/0275 (2013.01);
Abstract
The present invention relates to a method for treating an aqueous liquid comprising oil droplets and a surfactant and/or a base. For this method, a pore size threshold of a filter is determined taking into account the interfacial tension between the oil droplets and the water, and a filter is selected whose pore size is less than or equal to this threshold for filtration of the aqueous liquid.