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:
Jun. 10, 2014
Filed:
Dec. 28, 2010
Regina Celia Lourenco Guimarães, Rio de Janeiro, BR;
Bianca Machado Da Silva Ferreira, Rio de Janeiro, BR;
Maria DE Fatima Pereira Dos Santos, Rio de Janeiro, BR;
Ricardo Andre Guarnieri, Rio de Janeiro, BR;
Montserrat Fortuny Heredia, Aracaju, BR;
Cláudio Dariva, Aracaju, BR;
Alexandre Ferreira Santos, Aracaju, BR;
Rita DE Cássia Bomfim Lemos, Aracaju, BR;
Lisiane Dos Santos Freitas, Aracaju, BR;
Regina Celia Lourenco Guimarães, Rio de Janeiro, BR;
Bianca Machado da Silva Ferreira, Rio de Janeiro, BR;
Maria de Fatima Pereira dos Santos, Rio de Janeiro, BR;
Ricardo Andre Guarnieri, Rio de Janeiro, BR;
Montserrat Fortuny Heredia, Aracaju, BR;
Cláudio Dariva, Aracaju, BR;
Alexandre Ferreira Santos, Aracaju, BR;
Rita de Cássia Bomfim Lemos, Aracaju, BR;
Lisiane dos Santos Freitas, Aracaju, BR;
Petroleo Brasileiro S.A.—Petrobras, Rio de Janeiro, BR;
Abstract
A process for the treatment of water/oil (W/O) emulsions is described which includes the addition of an ionic liquid, under heating, to a water/oil emulsion containing between 0.5% and 85% of water per volume as a dispersion phase, until the concentration of the ionic liquid in the emulsion remains within the range of 0.01 μL/g to 100 μL/g. The ionic liquid used is a salt of a general CAformula in a liquid state at temperatures below 150° C., where Ais an anion and Cis a cation, which has at least a hydrophobic alkyl chain connected to a cation group. The heating method includes conventional heating and heating via microwaves. In the heating via microwaves, the salts of the general CAformula present synergic behavior in separation efficiency in relation to conventional heating.