Molecular sieve SSZ-116, its synthesis and use

Patent metadata

Field	Value
Publication number	US-11571685-B2
Application number	US-202017023709-A
Country	US
Kind code	B2
Filing date	Sep 17, 2020
Priority date	Jan 16, 2020
Publication date	Feb 7, 2023
Grant date	Feb 7, 2023

Abstract

A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-116, is provided. SSZ-116 can be synthesized using 3-[(3,5-di-tert-butylphenyl)methyl]-1,2-dimethyl-1H-imidazolium cations as a structure directing agent. SSZ-116 may be used in organic compound conversion reactions and/or sorptive processes.

First claim

The invention claimed is:

1. A method of synthesizing a molecular sieve, the method comprising:
(a) providing a reaction mixture comprising:
(1) a EAU framework type zeolite;
(2) a source of germanium;
(3) a structure directing agent comprising 3-[(3,5-di-tert-butylphenyl)methyl]-1,2-dimethyl-1H-imidazolium cations (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;
wherein the molecular sieve has, in its as-synthesized form, a powder X-ray diffraction pattern including the following peaks:

2-Theta [±0.30°]
d-Spacing [Å]
Relative Intensity

8.59
10.29
m

11.11
7.96
w

15.65
5.66
vs

17.49
5.07
w

20.87
4.25
m

23.02
3.86
m

23.60
3.77
w

24.05
3.70
w

25.30
3.52
m

25.90
3.44
m

26.91
3.31
 w.

2. The method of claim 1 , 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.

3. The method of claim 1 , 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.

4. The method of claim 1 , wherein the EAU framework type is zeolite Y.

5. The method of claim 1 , wherein the crystallization conditions include a temperature of from 125° C. to 200° C.

6. The method of claim 1 , wherein the reaction mixture has a Q/F molar ratio in a range of 0.8 to 1.2.

Assignees

• Chevron Usa Inc

Inventors

• Zones Stacey Ian
• Pascual Jesus
• Xie Dan
• Chen Cong-Yan

Classifications

• C01P2004/03

  obtained by SEM · CPC title

• C01P2002/72

  by d-values or two theta-values, e.g. as X-ray diagram · CPC title

• B01J29/047 Primary

  Germanosilicates; Aluminogermanosilicates (B01J29/005 takes precedence) · CPC title

• C01B39/48 Primary

  using at least one organic template directing agent · CPC title

• B01J37/0018

  Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat) · CPC title