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.

Date of Patent:
Nov. 21, 2017

Filed:

May. 23, 2016
Applicant:

Yale University, New Haven, CT (US);

Inventors:

Robert L. McGinnis, Cambridge, MA (US);

Menachem Elimelech, New Haven, CT (US);

Assignee:

Yale University, New Haven, CT (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 11/00 (2006.01); B01D 61/00 (2006.01); B01D 61/24 (2006.01); C02F 1/44 (2006.01); C02F 9/00 (2006.01); C02F 1/02 (2006.01); B01D 61/36 (2006.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
C02F 1/445 (2013.01); B01D 61/002 (2013.01); B01D 61/005 (2013.01); B01D 61/36 (2013.01); C02F 1/02 (2013.01); C02F 2103/08 (2013.01); Y02W 10/37 (2015.05);
Abstract

Separation processes using forward osmosis are disclosed generally involving the extraction of a solvent from a first solution to concentrate a solute therein by using a second concentrated solution to draw the solvent from the first solution across a semi-permeable membrane. One or both of the solute and solvent may be a desired product. By manipulating the equilibrium of the soluble and insoluble species of solute within the second solution, a saturated second solution can be used to generate osmotic pressure on the first solution. The various species of solute within the second solution can be recovered and recycled through the process to affect the changes in equilibrium and eliminate waste products. Enhanced efficiency may result from using low grade waste heat from industrial or commercial sources.


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