Molecular sieve SSZ-81
AssigneeChevron U.S.A. Inc.
InventorsStacey I. Zones, Anna Jackowski
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Abstract
The present invention is directed to a new crystalline molecular sieve designated SSZ-81, which is synthesized using a structure directing agent selected from 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dications, 1,5-bis(1,4-diazabicyclo[2.2.2]octane)pentane dications, and mixtures thereof.
Claims7
A molecular sieve having a mole ratio greater than about 10 of silicon oxide to aluminum oxide and having, after calcination, an X-ray diffraction pattern substantially as shown in the following Table:
- d-spacing
- Relative
- 2 Theta
- (Angstroms)
- Intensity (%)
- 7.45 ± 0.20
- 11.86
- S
- 7.45 peak-10.50, ±0.20
- W, broad band
- 14.38
- 6.15
- W
- 18.50-22.26 peak, ±0.20
- W, broad band
- 22.26 ± 0.20
- 3.99
- W
- 22.79 ± 0.20
- 3.90
- S
- 23.53 ± 0.20
- 3.78
- W-M
- 24.36 ± 0.20
- 3.65
- W-M
- 25.37 ± 0.20
- 3.51
- W
- 26.37 ± 0.20
- 3.38
- W
- 27.53 ± 0.20
- 3.24
- W
- 28.67 ± 0.20
- 3.11
- W
A molecular sieve having a mole ratio greater than about 10 of silicon oxide to aluminum oxide and having, after calcination, an X-ray diffraction pattern substantially as shown in the following Table:
- d-spacing
- Relative
- 2 Theta
- (Angstroms)
- Intensity (%)
- 7.45 ± 0.20
- 11.86
- S
- 7.45 peak-10.50, ±0.20
- W, broad band
- 14.38
- 6.15
- W
- 18.50-22.26 peak, ±0.20
- W, broad band
- 22.26 ± 0.20
- 3.99
- W
- 22.79 ± 0.20
- 3.90
- S
- 23.53 ± 0.20
- 3.78
- W-M
- 24.36 ± 0.20
- 3.65
- W-M
- 25.37 ± 0.20
- 3.51
- W
- 26.37 ± 0.20
- 3.38
- W
- 27.53 ± 0.20
- 3.24
- W
- 28.67 ± 0.20
- 3.11
- W
- the molecular sieve made by a process comprising contacting under crystallization conditions (1) at least one source of silicon;
- (2) at least one source of aluminum;
- (3) at least one source of an element selected from Groups 1 and 2 of the Periodic Table;
- (4) hydroxide ions;
- and (5) a structure directing agent selected from 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dications, 1,5-bis(1,4-diazabicyclo[2.2.2]octane)pentane dications, and mixtures thereof.
Dependencies are inferred from the claim text.