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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.:

US 8382989 B1

PDFFull Text
Expired
Date of Patent:
Feb. 26, 2013

Filed:

Aug. 29, 2008

Process for separating a charged species from an aqueous system

Applicants:

Johannes Petrus Aldegonda Custers, Baexem, NL;

Rafaël Jean Sablong, Eindhoven, NL;

Franciscus Adrianus Maria Leermakers, Wageningen, NL;

Johannes Theodorus Faustinus Keurentjes, Helmond, NL;

Dirk Theodorus Andreas Van Asseldonk, Eindhoven, NL;

Inventors:

Johannes Petrus Aldegonda Custers, Baexem, NL;

Rafaël Jean Sablong, Eindhoven, NL;

Franciscus Adrianus Maria Leermakers, Wageningen, NL;

Johannes Theodorus Faustinus Keurentjes, Helmond, NL;

Dirk Theodorus Andreas Van Asseldonk, Eindhoven, NL;

Assignee:

Afira IPR B.V., Eindhoven, NL;

Attorneys:

Gilberto M. Villacorta

Sunit Talapatra

Foley & Lardner LLP

Primary Examiner:

Matthew Savage

Int. Cl.
CPC ...
B01J 43/00 (2006.01); B01J 49/00 (2006.01); C02F 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a process for separating a charged species from an aqueous system, wherein the process comprises the following steps: (a) a first aqueous system comprising the charged species is contacted at a first temperature with an ampholytic polymeric 5 system comprising cationic and anionic domains, wherein the charged species is bonded to the ampholytic polymeric system; and (b) the ampholytic polymeric system is contacted with a second aqueous system at a second temperature, wherein the charged species is released to the second aqueous system, wherein the second temperature is higher than the first temperature and wherein the second temperature is higher than the first temperature and wherein the second 10 temperature is less than 60° C.

Find Patent Forward Citations

Custers, Johannes Petrus Aldegonda. (2013). Process for separating a charged species from an aqueous system (U.S. Patent No. 8382989). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8382989

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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