Boron SSZ-41, its synthesis and use
A novel synthetic crystalline molecular sieve material, designated boron SSZ-41 is provided. The boron SSZ-41 is a boronzincosilicate molecular sieve having the framework structure of SSZ-41. It can be synthesized using 1,1′-(1,4-butanediyl)bis[4-aza-1-azoniabicyclo[2.2.2]octane] dications as a structure directing agent. The boronzincosilicate SSZ-41 may be used in organic compound conversion reactions and/or sorptive processes.
1. A molecular sieve having in its as-synthesized form having the peaks below:
2-Theta
d-Spacing
Relative Intensity
[°]
[Å]
[100 × I/Io]
6.71
13.16
S
9.52
9.28
W
20.00
4.436
VS
21.40
4.149
VS
22.19
4.003
S − VS
23.22
3.828
S
24.45
3.638
S − VS
26.07
3.415
M − S
28.01
3.183
M
35.52
2.525
M
with boron and zinc in the framework.
2. The molecular sieve of claim 1 , and having a composition comprising the molar relationship:
B 2 O 3 :( n )(SiO 2 )
wherein n is ≥10.
3. The molecular sieve of claim 1 , and having a composition comprising the molar relationship:
B 2 O 3 :( n )(SiO 2 )
wherein n is ≥15.
4. The molecular sieve of claim 2 , wherein n ranges from about 15 to 20.
5. The molecular sieve of claim 1 , having a chemical composition comprising the following molar relationship:
SiO 2 /B 2 O 3
≥10
SiO 2 /Al 2 O 3
≥300
SiO 2 /ZnO
15 to 75
Q/SiO 2
>0 to 0.1
wherein Q comprises 1,1′-(1,4-butanediyl)bis[4-aza-1-azoniabicyclo[2.2.2]octane]dications.
6. The molecular sieve of claim 5 , wherein the molecular sieve has a chemical composition comprising the following molar relationship
SiO 2 /B 2 O 3
≥15
SiO 2 /Al 2 O 3
∞ (no Al)
SiO 2 /ZnO
20 to 40
Q/SiO 2
>0 to 0.1
wherein Q comprises 1,1′-(1,4-butanediyl)bis[4-aza-1-azoniabicyclo[2.2.2]octane]dications.
7. The molecular sieve of claim 1 having in its calcined form at least the following peaks:
2-Theta
d-Spacing
Relative Intensity
[°]
[Å]
[100 × I/Io]
6.82
12.95
VS
9.64
9.17
M − S
20.14
4.41
VS
21.55
4.12
S
22.35
3.97
M
23.38
3.80
M
24.64
3.61
M
26.24
3.39
M
28.18
3.16
M
35.70
2.51
W
with boron and zinc in the framework.