公开(公告)号：US10913666B2

公开(公告)日：2021-02-09

申请号：US16324831

申请日：2017-08-09

Applicant: Directa Plus S.p.A.

Inventor： Giulio Cesareo ,  Annalisa Pola ,  Laura Giorgia Rizzi

IPC: C02F1/28 ,  B01J20/28 ,  B01J20/20 ,  B01D17/02 ,  C02F1/00 ,  C02F101/32 ,  C02F103/10

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 m2/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.

公开(公告)号：US20190185348A1

公开(公告)日：2019-06-20

申请号：US16324831

申请日：2017-08-09

Applicant: Directa Plus S.p.A.

Inventor： Giulio Cesareo ,  Annalisa Pola ,  Laura Giorgia Rizzi

IPC: C02F1/28 ,  B01J20/20 ,  B01J20/28 ,  C02F1/00

CPC classification number: C02F1/283 ,  B01J20/20 ,  B01J20/28011 ,  B01J20/28059 ,  C02F1/001 ,  C02F2101/32 ,  C02F2103/10 ,  C02F2303/18

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 m2/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.