Title:
SOLVENT-RESISTANT FORWARD OSMOSIS COMPOSITE MEMBRANE, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/040336
Kind Code:
A1
Abstract:
Disclosed is a solvent-resistant forward osmosis composite membrane, the solvent-resistant forward osmosis composite membrane having an upper and lower composite structure composed of a separation layer and a porous support layer, the material of the separation layer being polyamide, and the material of the porous support layer being at least one among high-density polyethylene, polytetrafluoroethylene, and a perfluoroethylene-propylene copolymer. The solvent-resistant forward osmosis composite membrane of the present invention has the characteristics of excellent solvent stability, strong mechanical performance, long service life, and so on, can be stabilized for a long time in organic solvents such as alcohols, dimethylformamide, dimethylacetamide, N-methylpyrrolidone, dimethylsulfoxide, and tetrahydrofuran, and has good application prospects in forward osmosis separation processes of organic solvents, in particular in a forward osmosis separation process for an alcohol solvent and a drug concentration process for an alcohol solvent.
Inventors:
LI YANSHUO (CN)
LU PENG (CN)
WANG LING (CN)
WU DAPENG (CN)
LU PENG (CN)
WANG LING (CN)
WU DAPENG (CN)
Application Number:
PCT/CN2022/095102
Publication Date:
March 23, 2023
Filing Date:
May 26, 2022
Export Citation:
Assignee:
UNIV NINGBO (CN)
International Classes:
B01D69/12; B01D61/00; B01D67/00; B01D69/02; B01D69/10
Foreign References:
| CN113828168A | 2021-12-24 | |||
| CN108295667A | 2018-07-20 | |||
| CN112742221A | 2021-05-04 | |||
| CN106582315A | 2017-04-26 | |||
| CN109012241A | 2018-12-18 | |||
| CN104548967A | 2015-04-29 | |||
| US20120080378A1 | 2012-04-05 | |||
| US20130026091A1 | 2013-01-31 |
Attorney, Agent or Firm:
NINGBO AOSHENG PATENT AGENT COMPANY LIMITED. et al. (CN)
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