SILICON-PHOSPHO-ALUMINUM MOLECULAR SIEVE, PREPARATION METHOD AND APPLICATION THEREOF

WIPO Patent Application WO/2020/082943

A1

Provided are a novel silicon-phospho-aluminum molecular sieve, preparation method and application thereof. The molecular sieve has a schematic chemical composition in molar ratio mSiO 2·Al 2O 3·nP 2O 5, wherein m represents the ratio of silicon to aluminum and is in the range of about 0.005-0.15, and n represents the ratio of phosphorus to aluminum, and is in the range of about 0.7-1.1. The preparation method thereof comprises mixing a silicon source, an aluminum source, a phosphorus source, an organic substance R and water in proportion to obtain a synthetic mother liquor; crystallizing the synthetic mother liquor to obtain a molecular sieve precursor; calcining the precursor to obtain a molecular sieve. The molecular sieve has a unique X-ray diffraction pattern and can be used as an adsorbent, a catalyst or a catalyst support.

YANG WEIMIN (CN)
YUAN ZHIQING (CN)
TENG JIAWEI (CN)
FU WENHUA (CN)
LIU SONGLIN (CN)

PCT/CN2019/106608

April 30, 2020

September 19, 2019

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CHINA PETROLEUM & CHEM CORP (CN)
SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC (CN)

C01B39/54; B01J27/00; C01B37/08

US20080108857A1	2008-05-08
CN106608632A	2017-05-03
CN104556092A	2015-04-29
US20030129128A1	2003-07-10
US4310440A	1982-01-12
US4440871A	1984-04-03
US4752651A	1988-06-21

FLANIGEN E. M.GROSE R. W.: "Molecular Sieve Zeolites-I", 1970, ACS, article "Phosphorus Substitution in Zeolite Frameworks", pages: 76,98
See also references of EP 3872035A4

CHINA PATENT AGENT (H.K.) LTD. (CN)

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