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US 11,952,283 B2Granted
Silicon-and germanium-based SCM-25 molecular sieve, preparation process and use thereof
AssigneesChina Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology, Sinopec
InventorsWeimin Yang, Wenhua Fu, Zhiqing Yuan, Zhendong Wang, Jiawei Teng, Weichuan Tao, Shengli Zhao
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Abstract
A silicon-and germanium-based molecular sieve has a framework chemical composition as represented by the formula “SiO2.1/nGeO2”. The silicon/germanium molar ratio is 0.1n30. The molecular sieve has a unique X-ray diffraction pattern. It can be used in adsorptive separation, ion exchange, and catalytic conversion of organic compounds.
Claims19
A molecular sieve having an X-ray diffraction pattern as shown in the following table:
- 2θ(°)
- 6.53 ± 0.3
- 7.05 ± 0.3
- 9.56 ± 0.3
- 10.77 ± 0.3
- 12.84 ± 0.3
- 18.80 ± 0.3
- 22.60 ± 0.3
- wherein no more than 10% of Ge atoms in the molecular sieve are substituted with atoms of at least one element other than silicon and germanium.
6 more elements
Dependencies are inferred from the claim text.