SCM-38 molecular sieve, preparation method thereof, and use thereof
AssigneesChina Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology, Sinopec
InventorsWeimin YANG, Shengli ZHAO, Jian QIAO, Zhiqing YUAN, Zhendong WANG, Wenhua FU, Weichuan TAO
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Abstract
A SCM-38 molecular sieve and preparation process and use thereof are provided. The SCM-38 molecular sieve is a phosphorus-aluminium or silicon-phosphorus-aluminium molecular sieve, which has the following diffraction peak feature in its XRD spectrum: X-ray diffraction peaks appear at 2θ of 7.20±0.1, 10.81±0.1, 11.60±0.1, 14.32±0.1, 21.39±0.1, 21.83±0.1, 27.31±0.1, 28.72±0.1. The most intense peak appears at 2θ of 7.20±0.1.
Claims15
A SCM-38 molecular sieve, wherein the molecular sieve is a phosphorus-aluminium or silicon-phosphorus-aluminium molecular sieve, the SCM-38 molecular sieve shows the following diffraction peak feature in its XRD spectrum:
- X-ray diffraction peaks appear at 2θ diffraction angles of 7.20±0.1, 10.81±0.1, 11.60±0.1, 14.32±0.1, 21.39±0.1, 21.83±0.1, 27.31±0.1, 28.72±0.1, wherein the most intense peak appears at 2θ of 7.20±0.1,
- the SCM-38 molecular sieve has a schematic chemical composition represented by “P2O5·Al2O3·SiO2”, wherein based on the molar ratio, Al2O3:P2O5=0.8-1.5:1, preferably 0.8-1.4, more preferably 0.9-1.3;
- SiO2:P2O5=0-0.1:1, preferably 0-0.09:1, more preferably 0-0.07:1.
Dependencies are inferred from the claim text.