Title:
PREPARATION METHOD FOR POLYSULFONAMIDE NANOFILTRATION OR REVERSE OSMOSIS COMPOSITE MEMBRANE BY MOLECULAR LAYER ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2018/000361
Kind Code:
A1
Abstract:
Provided is a method for preparing a polysulfonamide nanofiltration or reverse osmosis composite membrane, comprising the following steps: a porous support membrane is subjected to molecular layer assembly in a sulfonyl chloride and polyamine monomer solution, followed by a heat treatment at 40ºC to 110ºC, and finally, thorough washing with an aqueous ethanol solution. The polysulfonamide composite membrane thus prepared is especially suitable for the treatment of acidic or alkaline fluids.
Inventors:
NIU Q JASON (US)
YUAN TAO (CN)
HU YUEFANG (CN)
GUO XIN (CN)
LI PENG (CN)
YUAN TAO (CN)
HU YUEFANG (CN)
GUO XIN (CN)
LI PENG (CN)
Application Number:
PCT/CN2016/087981
Publication Date:
January 04, 2018
Filing Date:
June 30, 2016
Export Citation:
Assignee:
UNIV CHINA PETROLEUM EAST CHINA (CN)
International Classes:
B01D69/12; B01D71/56; C02F1/44
Foreign References:
| CN103260731A | 2013-08-21 | |||
| CN102120149A | 2011-07-13 | |||
| CN101934201A | 2011-01-05 | |||
| CN101462025A | 2009-06-24 | |||
| US7727434B2 | 2010-06-01 |
Attorney, Agent or Firm:
BEIJING CROWN & RIGHTS LAW FIRM (CN)
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