# US 8,540,963 B2 · Molecular sieve SSZ-81

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,540,963 B2
- Document ID: US8540963B2
- Status: Granted
- Kind: B2
- Application number: 13/162,450
- Filed: 2011-06-16
- Published: 2011-12-29
- Granted: 2013-09-24
- Earliest claimed: 2010-06-25
- Assignees: Chevron U.S.A. Inc.
- Applicants: Stacey I. Zones; Anna Jackowski
- Inventors: Stacey I. Zones; Anna Jackowski
- Web page: https://patentgrep.com/patent/US8540963B2

## CPC

- C01B 39/48: using at least one organic template directing agent
- B01J 29/70: of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J 29/74: Noble metals
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

## 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.

## Claims

### Claim 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

### Claim 2 (depends on 1)

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:
SiO2/Al2O3
10-60
(Q + A)/SiO2
0.02-0.10
M/SiO2
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.

### Claim 3 (depends on 1)

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:
SiO2/Al2O3
20-35
(Q + A)/SiO2
0.04-0.07
M/SiO2
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.

### Claim 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.

### Claim 5 (depends on 4)

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:
SiO2/Al2O3
20-80
M/SiO2
0.05-0.30
(Q + A)/SiO2
0.05-0.30
OH−/SiO2
0.20-0.60
H2O/SiO2
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.

### Claim 6 (depends on 4)

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:
SiO2/Al2O3
25-35
M/SiO2
0.10-0.20
(Q + A)/SiO2
0.10-0.20
OH−/SiO2
0.30-0.35
H2O/SiO2
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.

### Claim 7 (depends on 4)

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:
SiO2/Al2O3
10-60
(Q + A)/SiO2
0.02-0.10
M/SiO2
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.