Title:
HIGH-FLUX ANTI-POLLUTION CERAMIC FILTER MEMBRANE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/068109
Kind Code:
A1
Abstract:
Disclosed in the present invention are a high-flux anti-pollution ceramic filter membrane and a preparation method therefor. The ceramic filter membrane has a pure water flux of 2600-3200 LMH under a pressure of 0.1 MPa, comprises a ceramic membrane support body and a transition membrane layer and a filter membrane layer which are provided on the surface of the ceramic membrane support body, and has a 48h stable flux of 190-240 LMH for a 1wt% soybean protein dispersion under the pressure of 0.1 MPa. The filter membrane layer prepared in the present invention has good flatness, no cavity defect on the membrane surface, a high membrane flux, and a strong anti-pollution capability; the preparation method in the present invention can prevent the transition membrane layer from collapsing into the inside of the support body, thereby improving the flatness of the membrane layer, reducing membrane resistance, and increasing the membrane flux and improving anti-pollution performance.
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Inventors:
QIU ZHUGUO (CN)
HONG YUBIN (CN)
FANG FULIN (CN)
LAN WEIGUANG (CN)
HONG YUBIN (CN)
FANG FULIN (CN)
LAN WEIGUANG (CN)
Application Number:
PCT/CN2020/140300
Publication Date:
April 07, 2022
Filing Date:
December 28, 2020
Export Citation:
Assignee:
SUNTAR MEMBRANE TECHNOLOGY XIAMEN CO LTD (CN)
International Classes:
B01D67/00; B01D69/02; B01D71/02
Foreign References:
| CN107149104A | 2017-09-12 | |||
| CN102258945A | 2011-11-30 | |||
| CN102718494A | 2012-10-10 | |||
| CN106187297A | 2016-12-07 | |||
| CN105906107A | 2016-08-31 | |||
| US20140209533A1 | 2014-07-31 | |||
| JP2002220292A | 2002-08-09 |
Other References:
"Fundamentals of Membrane Separation Technology, 2nd Edition", 31 August 2006, CHEMICAL INDUSTRY PRESS, CN, ISBN: 7-5025-9023-4, article WANG, ZHAN: "Preparation of Inorganic Membranes", pages: 20 - 24, XP009535880
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO., LTD. XIAMEN (CN)
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