High flux fluid separation membranes comprising a cellulose or cellulose derivative layer

一种纤维素衍生物、纤维素的技术，应用在半透膜分离、膜、涂层等方向
CN101720257AActive Publication Date: 2010-06-02THE RES FOUND OF STATE UNIV OF NEW YORK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE RES FOUND OF STATE UNIV OF NEW YORK
Publication Date
2010-06-02

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Abstract

The present invention provides membranes having a coating layer comprising cellulose or cellulose derivative and a porous support comprising nanofibers prepared by a process of coating a solution comprising cellulose or a cellulose derivative dissolved in an ionic liquid on to a porous support layer. The present invention is useful for providing improved water flux and high rejection rates for oil / water emulsions. The present invention also provides fluid separation systems in UF, NF, RO and FO, incorporating membranes of the present invention.
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Description

[0001] government rights

[0002] This invention was made with Government support under Grant No. N000140310932 to the Office of Naval Research. The government has certain rights in this invention.

[0003] Cross References to Related Applications

[0004] This application claims the benefit of U.S. Provisional Patent Application 60 / 931,765, filed May 26, 2007, and U.S. Provisional Patent Application 60 / 947,045, filed June 29, 2007, the entire contents of which are for all Its purpose is incorporated herein in its entirety. field of invention

[0005] The present invention relates to a simple process for the preparation of cellulose and cellulose derivative composite membranes with enhanced permeate flux properties. The membranes of the present invention are useful as fluid separation membranes such as ultrafiltration membranes, nanofiltration membranes, reverse osmosis membranes and forward osmosis membranes. Background of the invention

[0006] Cellulose is an abundant...

Claims

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