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. 09, 2021
Filed:
Aug. 09, 2017
Applicant:
Directa Plus S.p.a., Lomazzo, IT;
Inventors:
Assignee:
Directa Plus S.p.A., Lomazzo, IT;
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/28 (2006.01); B01J 20/28 (2006.01); B01J 20/20 (2006.01); B01D 17/02 (2006.01); C02F 1/00 (2006.01); C02F 101/32 (2006.01); C02F 103/10 (2006.01);
U.S. Cl.
CPC ...
C02F 1/283 (2013.01); B01D 17/0202 (2013.01); B01J 20/20 (2013.01); B01J 20/28011 (2013.01); B01J 20/28059 (2013.01); C02F 1/001 (2013.01); C02F 2101/32 (2013.01); C02F 2103/10 (2013.01); C02F 2303/18 (2013.01);
Abstract
Process for the treatment of water containing low quantities of hydrocarbons (as dispersed or dissolved or emulsified) by means of expanded graphite having an apparent density from 2 to less than 5 g/l, wherein said hydrocarbons are present in a quantity less than or equal to 1 g/l, a specific surface area from 50 to 100 m/g and a carbon/oxygen ratio (C:O)≥100. The expanded graphite is mixed vigorously for a short time with the water contaminated by hydrocarbons and easily separated at the end of the treatment.