Molecular sieve SSZ-109, its synthesis and use

Patent metadata

Field	Value
Publication number	US-10214427-B2
Application number	US-201815951255-A
Country	US
Kind code	B2
Filing date	Apr 12, 2018
Priority date	Apr 28, 2017
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

A novel synthetic crystalline molecular sieve designated as SSZ-109 is disclosed. SSZ-109 is synthesized using a structure directing agent comprising one or more of N,N,N′,N′-tetramethyl-N,N′-diisobutylhexane-1,6-diammonium cations, N,N,N′,N′-tetramethyl-N,N′-dineopentylhexane-1,6-diammonium cations, and N,N,N′,N′-tetramethyl-N-isobutyl-N′-neopentylhexane-1,6-diammonium cations.

First claim

The invention claimed is:

1. A molecular sieve having, in its as-synthesized form, an X-ray diffraction pattern including the peaks listed in the following Table:

2-Theta
d-Spacing, nm
Relative Intensity
Peak Broadening

 7.29 ± 0.30
1.212
W
B

 8.36 ± 0.30
1.056
W
Sh

14.71 ± 0.30
0.602
W
B

18.45 ± 0.30
0.480
W
B

20.74 ± 0.30
0.428
VS
Sh

21.82 ± 0.30
0.407
W
Sh

22.53 ± 0.30
0.394
VS
Sh

23.92 ± 0.30
0.372
W
B

26.17 ± 0.30
0.340
M
B

28.71 ± 0.30
0.311
W
 Sh.

2. The molecular sieve of claim 1 , and having a composition comprising the molar relationship:

SiO 2 /X 2 O 3
≥10

Q/SiO 2
>0 to 0.1

M/SiO 2
0 to 0.1

wherein X is a trivalent element; Q comprises one or more of N,N,N′,N′-tetramethyl-N,N′-diisobutylhexane-1,6-diammonium cations, N,N,N′,N′-tetramethyl-N,N′-dineopentylhexane-1,6-diammonium cations, and N,N,N′,N′-tetramethyl-N-isobutyl-N′-neopentylhexane-1,6-diammonium cations; and M is a metal selected from Groups 1 and 2 of the Periodic Table.

3. The molecular sieve of claim 2 , wherein the trivalent element (X) comprises one of more of B, Al, Ga, and Fe.

4. The molecular sieve of claim 2 , wherein the trivalent element (X) comprises one or more of B and Al.

5. A method of synthesizing the molecular sieve of claim 1 , the method comprising:
(a) preparing a reaction mixture comprising:
(1) a source of silicon oxide;
(2) optionally, a source of an oxide of a trivalent element (X);
(3) optionally, a source of a metal (M) selected from Groups 1 and 2 of the Periodic Table;
(4) a structure directing agent (Q) comprising one or more of N,N,N′,N′-tetramethyl-N,N′-diisobutylhexane-1,6-diammonium cations, N,N,N′,N′-tetramethyl-N,N′-dineopentylhexane-1,6-diammonium cations, and N,N,N′,N′-tetramethyl-N-isobutyl-N′-neopentylhexane-1,6-diammonium cations;
(5) a source of hydroxide ions; and
(6) water; and

(b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the molecular sieve.

6. The method of claim 5 , wherein the reaction mixture has a composition, in terms of molar ratios, as follows:

SiO 2 /X 2 O 3
≥10

M/SiO 2
0 to 0.50

Q/SiO 2
0.05 to 0.50

OH/SiO 2
0.01 to 0.60

H 2 O/SiO 2
5 to 60.

7. The method of claim 5 , wherein the reaction mixture has a composition, in terms of molar ratios, as follows:

SiO 2 /Al 2 O 3
20 to 500

M/SiO 2
0.0.01 to 0.20

Q/SiO 2
0.10 to 0.25

OH/SiO 2
0.20 to 0.40

H 2 O/SiO 2
20 to 40.

8. The method of claim 5 , wherein the trivalent element (X) comprises one of more of B, Al, Ga, and Fe.

9. The method of claim 5 , wherein the trivalent element (X) comprises one or more of B and Al.

10. The method of claim 5 , wherein the crystallization conditions include a temperature of from 125° C. to 200° C.

11. A molecular sieve having, in its calcined form, an X-ray diffraction pattern including the peaks listed in the following Table:

2-Theta
d-Spacing, nm
Relative Intensity
Peak Broadening

 7.21 ± 0.30
1.225
M
B

 8.43 ± 0.30
1.048
W

Assignees

• Chevron Usa Inc

Inventors

• Xie Dan

Classifications

• C01B39/065

  Galloaluminosilicates; Group IVB- metalloaluminosilicates; Ferroaluminosilicates · CPC title

• C01B39/48 Primary

  using at least one organic template directing agent · CPC title

• C01B39/087

  Ferrosilicates · CPC title

• C01B39/12

  the replacing atoms being {at least} boron atoms · CPC title

• B01J29/86

  Borosilicates; Aluminoborosilicates {(B01J29/005 takes precedence)} · CPC title