专利检索 ap:("Compact Membrane Systems Inc.") AND inv:"KENNETH J. PENNISI" 第 1 页

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发明申请
DURABLE MEMBRANES FOR SEPARATION OF SOLUTES FROM ORGANIC SOLVENTS 有权

公开(公告)号：US20210220780A1

公开(公告)日：2021-07-22

申请号：US15734029

申请日：2019-01-14

申请人： Compact Membrane Systems Inc.

发明人： ROBERT D. LOUSENBERG , EVAN A. SOHODSKI , KENNETH J. PENNISI

IPC分类号： B01D71/32 , B01D67/00 , B01D69/10 , B01D69/02 , B01D69/12

摘要： This invention discloses a thin-film composite thin-film composite membrane that is useful for the separation of solute species in organic solvents and particularly in aggressive, high boiling-point, polar-aprotic solvents such as dimethylsulfoxide, (DMSO), N-Methyl-2-pyrrolidone (NMP), dimethylacetamide (DMAc), dimethylformamide (DMF). Thin-film composite separation performance and durability is greatly enhanced through electrostatic crosslinking of an ionomer selective layer by incorporation of a multi-valent counter-ion. The thin-film composite is resistant to contact with amines and the separation efficiency is tunable by choice of multi-valent counter-ion or through the applied pressure differential across the membrane.