Aluminophosphate molecular sieve SCM-18, its preparation and application thereof
AssigneesChina Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology, Sinopec
InventorsWeimin Yang, Zhiqing Yuan, Jiawei Teng, Wenhua Fu, Songlin Liu
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Abstract
An aluminophosphate molecular sieve SCM-18 has a schematic chemical composition, expressed on a molar basis, of Al2O3.n P2O5, in which n represents a phosphorus to aluminum molar ratio, and is in a range of about 0.8-1.2. The aluminophosphate molecular sieve has a unique X-ray diffraction pattern, and can be used as an adsorbent, a catalyst or a catalyst carrier.
Claims20
An aluminophosphate molecular sieve having a schematic chemical composition of Al2O3·nP2O5, expressed in molar ratio, wherein n represents a phosphorus to aluminum molar ratio, and is in a range of about 0.8 to about 1.2, and the molecular sieve has an X-ray diffraction pattern exhibiting a relative intensity profile as shown in the following table:
- 2 theta
- Interplanar spacing
- Relative intensity
- (°)
- (Å)
- (I/I0) × 100
- 8.20-8.60
- 10.27-10.77
- VS
- 13.73-13.99
- 6.32-6.44
- VS
- 16.16-16.41
- 5.39-5.48
- W-M
- 16.36-16.61
- 5.33-5.41
- W-M
- 21.34-21.58
- 4.11-4.16
- W-M
- 21.66-21.91
- 4.05-4.10
- M-S
- 24.04-24.32
- 3.66-3.70
- W-M.
Dependencies are inferred from the claim text.