REVERSE OSMOSIS SEPARATION MEMBRANE EXCELLENT IN SALT REMOVAL RATE AND PERMEATION FLOW CHARACTERISTICS AND PRODUCTION METHOD OF THE SAME

PROBLEM TO BE SOLVED: To provide a reverse osmosis separation membrane with an improved salt removal rate and permeation flow characteristics capable of further enhancing the salt removal rate and permeation flow characteristics, and production method of the same.SOLUTION: A reverse osmosis separati...

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Bibliographic Details
Main Authors LEE YOUNG-JU, YOO JOUNG-EUN, LEE PHILL, SHIN CHONG-KYU, JEONG SEUNG-PYO
Format Patent
LanguageEnglish
Japanese
Published 24.12.2015
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a reverse osmosis separation membrane with an improved salt removal rate and permeation flow characteristics capable of further enhancing the salt removal rate and permeation flow characteristics, and production method of the same.SOLUTION: A reverse osmosis separation membrane comprises: a microporous support layer; and a polyamide active layer formed on the microporous support layer, and including one or more types of graphene-containing compound. The polyamide active layer is formed of an interfacially polymerized substance including: an amine compound as amine aqueous solution containing 0.0005 - 0.05 wt.% of the one or more types of graphene-containing compound; and an acyl halide compound. 【課題】逆浸透分離膜の塩除去率及び透過流量特性をさらに向上させる塩除去率及び透過流量特性が向上した逆浸透分離膜及びその製造方法の提供。【解決手段】微細多孔性支持層と、前記微細多孔性支持層上に形成され１種以上のグラフェン含有化合物を含むポリアミド系活性層とを含み、前記ポリアミド系活性層は、１種以上のグラフェン含有化合物を０．０００５〜０．０５重量％の含量で含むアミン水溶液のアミン化合物とアシルハライド化合物との界面重合体によって形成する逆浸透分離膜。【選択図】なし
Bibliography:Application Number: JP20150142123