Molecular sieve SSZ-81
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.
1. 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
2. The molecular sieve according to claim 1 , wherein the molecular sieve has a composition, as-synthesized and in the anhydrous state, in terms of mole ratios, as follows:
SiO 2 /Al 2 O 3
10-60
(Q + A)/SiO 2
0.02-0.10
M/SiO 2
0.01-1.0
wherein:
(1) M is selected from the group consisting of elements from Groups 1 and 2 of the Periodic Table;
(2) Q is at least one 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dication structure directing agent, and Q≧0; and
(3) A is at least one 1,5-bis(1,4-diazabicyclo[2.2.2]octane)pentane dication structure directing agent, and A≧0.
3. The molecular sieve according to claim 1 , wherein the molecular sieve has a composition, as-synthesized and in the anhydrous state, in terms of mole ratios, as follows:
SiO 2 /Al 2 O 3
20-35
(Q + A)/SiO 2
0.04-0.07
M/SiO 2
0.02-0.04
wherein:
(1) M is selected from the group consisting of elements from Groups 1 and 2 of the Periodic Table;
(2) Q is at least one 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dication structure directing agent, and Q≧0; and
(3) A is at least one 1,5-bis(1,4-diazabicyclo[2.2.2]octane)pentane dication structure directing agent, and A≧0.
4. 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.
5. The molecular sieve of claim 4 , wherein the molecular sieve is prepared from a reaction mixture comprising, in terms of mole ratios, a composition as described in the following Table:
SiO 2 /Al 2 O 3
20-80
M/SiO 2
0.05-0.30
(Q + A)/SiO 2
0.05-0.30
OH − /SiO 2
0.20-0.60
H 2 O/SiO 2
10-50
wherein:
(1) M is selected from the group consisting of elements from Groups 1 and 2 of the Periodic Table;
(2) Q is at least one 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dication structure directing agent, and Q≧0; and
(3) A is at least one 1,5-bis(1,4-diazabicyclo[2.2.2]octane)pentane dication structure directing agent, and A≧0.
6. The molecular sieve of claim 4 , wherein the molecular sieve is prepared from a reaction mixture comprising, in terms of mole ratios, a composition as described in the following Table:
SiO 2 /Al 2 O 3
25-35
M/SiO 2
0.10-0.20
(Q + A)/SiO 2
0.10-0.20
OH − /SiO 2
0.30-0.35
H 2 O/SiO 2
30-40
wherein:
(1) M is selected from the group consisting of elements from Groups 1 and 2 of the Periodic Table;
(2) Q is at least one 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dication structure directing agent, and Q≧0; and
(3) A is at least one 1,5-bis(1,4-diazabicyclo[2.2.2]octane)pentane dication structure directing agent, and A≧0.
7. The molecular sieve of claim 4 , wherein the molecular sieve has a composition, as-synthesized and in the anhydrous state, in terms of mole ratios, as follows:
SiO 2 /Al 2 O 3
10-60
(Q + A)/SiO 2
0.02-0.10
M/SiO 2
0.01-1.0
wherein:
(1) M is selected from the group consisting of elements from Groups 1 and 2 of the Periodic Table;
(2) Q is at least one 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dication structure directing agent, and Q≧0; and
(3) A is at least one 1,5-bis(1,4-diazabicyclo[2.2.2]octane)pentane dication structure directing agent, and A≧0.