US 11,897,779 B2
Microporous aluminotitanosilicate crystalline zeolite, method of preparation and applications thereof
Fangzheng Su, Shanghai (CN); Stéphane Streiff, Shanghai (CN); Laurent Garel, Lyons (FR); Peng Wu, Shanghai (CN); Jianyong Yin, Shanghai (CN); and Xinqing Lu, Shanghai (CN)
Assigned to East China Normal University, Shanghai (CN); and RHODIA OPERATIONS, Aubervilliers (FR)
Appl. No. 17/269,795
Filed by RHODIA OPERATIONS, Aubervilliers (FR); and EAST CHINA NORMAL UNIVERSITY, Shanghai (CN)
PCT Filed Aug. 6, 2019, PCT No. PCT/CN2019/099354
§ 371(c)(1), (2) Date Feb. 19, 2021,
PCT Pub. No. WO2020/038222, PCT Pub. Date Feb. 27, 2020.
Claims priority of application No. PCT/CN2018/102299 (WO), filed on Aug. 24, 2018.
Prior Publication US 2021/0331931 A1, Oct. 28, 2021
Int. Cl. C01B 39/02 (2006.01); C01B 39/06 (2006.01); B01J 29/70 (2006.01)
CPC C01B 39/023 (2013.01) [B01J 29/70 (2013.01); C01B 39/065 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01)] 20 Claims
 
1. A microporous aluminotitanosilicate crystalline zeolite having a three-dimensional framework of A1O2, SiO2 and TiO2 tetrahedral units and an empirical composition in the as synthesized and anhydrous basis expressed by an empirical formula of:
TipMmn+AlxSiOy
wherein:
p is the mole ratio of Ti to Si and has a value from 0.005 to about 0.1,
M represents a potassium ion and/or sodium ion, or their exchangeable cations,
m is the mole ratio of M to Si and varies from about 0.001 to about 0.05,
n is the valence of M,
x is the mole ratio of Al to Si and varies from 0.0025 to about 0.1; and
y has a value determined by the equation:
y=(4·p+m·n+3·x+4)/2
and is characterized in that it has the x-ray diffraction pattern having at least the intensities set forth in Table A:
TABLE A
 
2θ(Degree) I/Io %
 
6.45-6.8  m
6.75-7.13 m-vs
7.86-8.26 m
8.64-9.04 m
 9.51-10.09 m-vs
10.62-11.23 w-m
 13.4-14.22 w-m
14.76-15.55 w
17.63-18.37 m
19.17-19.91 w-m
19.64-20.56 m
20.18-21.05 w-m
 20.7-21.57 w-m
21.36-22.28 vs
22.17-23.6  m-s
22.7-23.8 w-m
24.12-25.23 w
 25.6-26.94 m
26.37-27.79 m
27.02-28.42 m
27.53-28.89 m
 28.7-30.09 m
29.18-30.72 w-m
30.19-31.73 m
30.83-32.2  w
32.81-34.22 w
35.63-36.99 w
41.03-42.86 w
44.18-45.83 w
44.87-46.57 w
46.07-47.35 w
48.97-50.42 w
 
wherein: the ratio of MSE framework characteristic peak intensity at a 2θ angle equal to 21.7 degree, to MFI framework characteristic peak intensity at a 2θ angle equal to 23.3 degree ranges from 80:1 to 1:1 in x-ray diffraction pattern.