Molecular sieve SSZ-117, its synthesis and use
A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-117, is provided. SSZ-117 can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. SSZ-117 may be used in organic compound conversion reactions and/or sorptive processes.
1. A molecular sieve having, in its calcined form, a powder X-ray diffraction pattern including the following peaks:
2-Theta [±0.30°]
d-Spacing [Å]
Relative Intensity
7.88
11.21
VS
9.14
9.67
M
10.23
8.64
M
11.24
7.87
S
14.95
5.92
W
15.63
5.67
W
17.41
5.09
W
18.19
4.87
M
18.43
4.81
W
19.35
4.59
W
19.74
4.49
W.
2. The molecular sieve of claim 1 , and having a composition comprising the molar relationship:
Al 2 O 3 :(n)TO 2
wherein n is ≥30; and T is a tetravalent element comprising silicon and germanium.
3. The molecular sieve of claim 1 , and having a composition comprising the molar relationship:
Al 2 O 3 :(n)TO 2
wherein n is ≥50; and T is a tetravalent element comprising silicon and germanium.
4. A molecular sieve having, in its as-synthesized form, a powder X-ray diffraction pattern including the following peaks:
2-Theta [±0.30°]
d-Spacing [Å]
Relative Intensity
7.80
11.33
VS
9.15
9.66
W
10.13
8.73
W
11.45
7.72
VS
14.97
5.91
W
15.63
5.67
W
17.15
5.17
M
18.12
4.89
M
18.70
4.74
M
19.21
4.62
W
19.63
4.52
W.
5. The molecular sieve of claim 4 , having a chemical composition comprising the following molar relationship:
TO 2 /Al 2 O 3
≥30
Q + /TO 2
>0 to 0.1
wherein T is a tetravalent element comprising silicon and germanium; and Q + comprises N,N,N,3,5-pentamethyladamantan-1-ammonium cations.
6. The molecular sieve of claim 4 , having a chemical composition comprising the following molar relationship:
TO 2 /Al 2 O 3
≥50
Q + /TO 2
>0 to 0.1
wherein T is a tetravalent element comprising silicon and germanium; and Q + comprises N,N,N,3,5-pentamethyladamantan-1-ammonium cations.
7. A method of synthesizing the molecular sieve of claim 4 , the method comprising:
(a) providing a reaction mixture comprising:
(1) a FAU framework type zeolite;
(2) a source of germanium;
(3) N,N,N,3,5-pentamethyladamantan-1-ammonium hydroxide (Q);
(4) a source of fluoride ions; and
(5) water; and
(b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the molecular sieve.
8. The method of claim 7 , wherein the reaction mixture has a composition, in terms of molar ratios, as follows:
TO 2 /Al 2 O 3
30 to 600
Q/TO 2
0.10 to 1.00
F/TO 2
0.10 to 1.00
H 2 O/TO 2
2 to 10
wherein T is a tetravalent element comprising silicon and germanium.
9. The method of claim 7 , wherein the reaction mixture has a composition, in terms of molar ratios, as follows:
TO 2 /Al 2 O 3
60 to 500
Q/TO 2
0.20 to 0.70
F/TO 2
0.20 to 0.70
H 2 O/TO 2
4 to 8
wherein T is a tetravalent element comprising silicon and germanium.
10. The method of claim 7 , wherein the FAU framework type zeolite is zeolite Y.
11. The method of claim 7 , wherein the crystallization conditions include a temperature of from 125° C. to 200° C.
12. The method of claim 7 , wherein the reaction mixture has a Q/F molar ratio in a range of 0.8 to 1.2.
13. A process for converting a feedstock comprising an organic compound to a conversion product, the process comprising contacting the feedstock at organic compound conversion conditions with a catalyst comprising the molecular sieve of claim 1 .