Title:
PREPARATION METHOD FOR TITANIA CERAMIC ULTRAFILTRATION MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2021/248896
Kind Code:
A1
Abstract:
A preparation method for a titania ceramic ultrafiltration membrane. A sol-gel process is combined with hydrothermal processing of a microemulsion medium to prepare a titania nanosol. An additive is introduced into a titania sol to form a membrane coating solution, which is dip-coated onto a porous alumina ceramic membrane; said membrane is then dried and calcined such that a titania ultrafiltration membrane layer may be obtained. In the invention, a specific emulsifier is added to a titania sol; a titania nanosol is prepared by means of a low-temperature hydrothermal reaction having a short reaction time; a membrane coating solution is formulated, and drying and calcining are carried out, thus producing a titania ultrafiltration membrane.
Inventors:
CHEN YUNQIANG (CN)
HONG YUBIN (CN)
FANG FULIN (CN)
LAN WEIGUANG (CN)
HONG YUBIN (CN)
FANG FULIN (CN)
LAN WEIGUANG (CN)
Application Number:
PCT/CN2020/142010
Publication Date:
December 16, 2021
Filing Date:
December 31, 2020
Export Citation:
Assignee:
SUNTAR MEMBRANE TECHNOLOGY XIAMEN CO LTD (CN)
International Classes:
B01D71/80; B01D69/12; B01D71/02; C04B35/10
Foreign References:
| CN110743401A | 2020-02-04 | |||
| CN101301606A | 2008-11-12 | |||
| CN110743385A | 2020-02-04 | |||
| JPS6317221A | 1988-01-25 | |||
| CN106178981A | 2016-12-07 | |||
| JP2007320839A | 2007-12-13 | |||
| CN110272298A | 2019-09-24 |
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO., LTD. XIAMEN (CN)
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