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:
Sep. 14, 2010
Filed:
Nov. 30, 2005
Gary W. Schukar, North Oak, MN (US);
Dan L. Fanselow, White Bear Lake, MN (US);
Todd W. Johnson, Minneapolis, MN (US);
Nicholas J. Isder, St. Paul, MN (US);
Bradley K. Fong, Woodbury, MN (US);
Michael D. Begich, Eagan, MN (US);
Gary W. Schukar, North Oak, MN (US);
Dan L. Fanselow, White Bear Lake, MN (US);
Todd W. Johnson, Minneapolis, MN (US);
Nicholas J. Isder, St. Paul, MN (US);
Bradley K. Fong, Woodbury, MN (US);
Michael D. Begich, Eagan, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Liquid-liquid extraction elements are described. A liquid-liquid extraction element includes a first layer pair and a second layer pair disposed adjacent the first layer pair forming a stack of layers. The first layer pair includes a first polymeric microporous membrane, and a first flow channel layer oriented in a first flow direction having a fluid inlet and a fluid outlet disposed on first opposing sides of the extraction element. The second layer pair includes a second polymeric microporous membrane and a second flow channel layer oriented in a second flow direction different than the first flow direction and having a fluid inlet and a fluid outlet disposed on second opposing sides of the extraction element. The first microporous membrane is disposed between the first flow channel and the second flow channel. Methods of extracting a dissolved solute from a first liquid to a second liquid are also described.