METHOD FOR PREPARING HIGH-STRENGTH CERAMIC FILTER MEMBRANE

WIPO Patent Application WO/2021/073100

A1

A method for preparing a high-strength ceramic filter membrane, comprising: heating support ceramic aggregate particles in a vacuum state to 100-300℃ to dry same for 24-72 h; then mixing pre-prepared dispersed nano sintering aids with the ceramic aggregate particles in a vacuum state, and wetting the mixture; then pressurizing the mixed solution to 10-20 Mpa, keeping the pressure, and performing aging for 12-48 h; separating powder from a slurry and drying the powder; adding a forming aid and performing mixing evenly; then performing support blank forming; air-drying the blank, and then heat-drying and sintering the blank; and then coating at least one filter membrane on the support, so as to obtain a ceramic membrane product.

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QIU ZHUGUO (CN)
HONG YUBIN (CN)
FANG FULIN (CN)
LAN WEIGUANG (CN)

PCT/CN2020/092216

April 22, 2021

May 26, 2020

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SUNTAR MEMBRANE TECHNOLOGY XIAMEN CO LTD (CN)

B01D71/02; B01D67/00; B01D69/10; C04B35/10; C04B35/628

CN108392990A	2018-08-14
CN107619281A	2018-01-23
CN107337442A	2017-11-10
CN104587846A	2015-05-06
DE19857590B4	2004-09-09

SHOUCHUANG JUNHE PATENT AGENT CO., LTD.XIAMEN (CN)

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