Title:
M-CHA/M-MOR COMPOSITE MOLECULAR SIEVE CONTAINING ACTIVE METAL AND PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/055461
Kind Code:
A1
Abstract:
The present invention relates to an M-CHA/M-MOR composite molecular sieve containing an active metal and a preparation method. The method comprises: S1, adding an alkali source, a silicon source, an aluminum source, a structure directing agent, an active metal complex, and a crystal form regulator into water, and stirring to obtain a gel, wherein the crystal form regulator is an aqueous solution containing a molecular sieve secondary building unit and prepared on the basis of at least one of an MOR molecular sieve, a CHA/MOR composite molecular sieve, and a CHA-MOR mixed molecular sieve; S2, carrying out hydrothermal reaction on the gel, and separating an obtained slurry to obtain a composite molecular sieve; and S3, drying and roasting the composite molecular sieve to obtain an M-CHA/M-MOR composite molecular sieve containing an active metal. The present invention not only can regulate and control the comprehensive performance of a molecular sieve, but also discloses a direct preparation method for the M-CHA/M-MOR composite molecular sieve containing the active metal, and has the advantages of short process flow, low wastewater yield, low energy consumption, and the like.
Inventors:
TIAN SHIDONG (CN)
LI KELUN (CN)
DANG MINHUI (CN)
ZHANG WENQUAN (CN)
WANG LI (CN)
LI HONGWEI (CN)
SU CHANGLUO (CN)
DU BINGLIN (CN)
LI KELUN (CN)
DANG MINHUI (CN)
ZHANG WENQUAN (CN)
WANG LI (CN)
LI HONGWEI (CN)
SU CHANGLUO (CN)
DU BINGLIN (CN)
Application Number:
PCT/CN2022/139818
Publication Date:
March 21, 2024
Filing Date:
December 17, 2022
Export Citation:
Assignee:
SHAANXI COAL CHEMICAL IND TECH RES INST CO LTD (CN)
International Classes:
B01J29/80; B01D53/56; B01D53/86; B01J37/10
Foreign References:
| CN115318334A | 2022-11-11 | |||
| CN108862307A | 2018-11-23 | |||
| CN108014842A | 2018-05-11 | |||
| CN106582805A | 2017-04-26 | |||
| US20190351399A1 | 2019-11-21 |
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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