Title:
GRADIENT COMPOSITE FE-AL INTERMETALLIC COMPOUND MICROPOROUS FILTER MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/139082
Kind Code:
A1
Abstract:
A gradient composite Fe-Al intermetallic compound microporous filter material, comprising a matrix framework (1) and a surface filter membrane (2) on the outer side of the matrix framework. A method for preparing a gradient composite Fe-Al intermetallic compound microporous filter material, comprising: performing isostatic pressing on pre-alloyed Fe-Al intermetallic compound powders; performing vacuum sintering on the isostatically pressed green body so as to prepare a filter material matrix; coating a surface filter membrane on the surface of the filter material matrix, wherein a slurry for coating the surface filter membrane is formed by mixing a binder, water and the pre-alloyed Fe-Al intermetallic compound powders; and performing secondary vacuum sintering on the filter material matrix coated with the surface filter membrane so as to form a gradient composite Fe-Al intermetallic compound microporous filter material. Thus, a gradient composite Fe-Al intermetallic compound microporous filter material with high precision, high flux, low resistance drop, a good blowback regeneration characteristics, high strength, and high-temperature and corrosion resistance is achieved.
Inventors:
GU HU (CN)
YANG JUNJUN (CN)
WANG FAN (CN)
LIU GUANYING (CN)
ZHANG YU (CN)
DAI YING (CN)
YANG XUAN (CN)
WANG KUN (CN)
LIN SHIYU (CN)
YANG JUNJUN (CN)
WANG FAN (CN)
LIU GUANYING (CN)
ZHANG YU (CN)
DAI YING (CN)
YANG XUAN (CN)
WANG KUN (CN)
LIN SHIYU (CN)
Application Number:
PCT/CN2020/094412
Publication Date:
July 15, 2021
Filing Date:
June 04, 2020
Export Citation:
Assignee:
AT&M ENVIRONMENTAL ENGINEERING TECH CO LTD (CN)
International Classes:
B22F1/00; B22F3/04; B22F3/10; B22F7/02
Foreign References:
| CN111069590A | 2020-04-28 | |||
| CN102489079A | 2012-06-13 | |||
| CN110125392A | 2019-08-16 | |||
| CN103894075A | 2014-07-02 | |||
| CN105727756A | 2016-07-06 | |||
| CN1833750A | 2006-09-20 | |||
| GB2271781B | 1996-12-04 |
Attorney, Agent or Firm:
CHINAREALS INTELLECTUAL PROPERTY AGENCY (BEIJING) OFFICE (CN)
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