Molecular sieve SSZ-98

Patent metadata

Field	Value
Publication number	US-9409786-B2
Application number	US-201414323444-A
Country	US
Kind code	B2
Filing date	Jul 3, 2014
Priority date	Jul 3, 2014
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

A new crystalline molecular sieve designated SSZ-98 is disclosed. SSZ-98 has the ERI framework type and is synthesized using a N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane dication as a structure directing agent.

First claim

The invention claimed is:

1. An ERI framework type molecular sieve having a mole ratio of from 15 to 50 of (1) silicon oxide to (2) aluminum oxide, wherein the molecular sieve has either a rod-like crystal morphology or a plate crystal morphology.

2. The molecular sieve of claim 1 , wherein the molecular sieve has, in its calcined form, an X-ray diffraction pattern substantially as shown in the following Table:

2-Theta
d-spacing (nm)
Relative Intensity

 7.76 ± 0.20
1.138
VS

 9.78 ± 0.20
0.904
W

11.79 ± 0.20
0.750
W

13.45 ± 0.20
0.658
VS

14.07 ± 0.20
0.629
W

15.51 ± 0.20
0.571
W

16.61 ± 0.20
0.533
W

19.50 ± 0.20
0.455
W

20.54 ± 0.20
0.432
S

21.39 ± 0.20
0.415
W

23.37 ± 0.20
0.380
M

23.73 ± 0.20
0.375
S

24.92 ± 0.20
0.357
 W.

3. An ERI framework type molecular sieve having a composition, as-synthesized and in its anhydrous state, in terms of mole ratios, as follows:

SiO 2 /Al 2 O 3
15 to 50

(Q + A)/SiO 2
0.01 to 0.10

M/SiO 2
0.01 to 0.20

wherein:
(1) Q is a N,N′-dimethyl-1,4-diazabicyclo[2.2.2]octane dication, and Q>0;
(2) A is 18-crown-6, and A≧0; and
(3) M is selected from the group consisting of elements from Groups 1 and 2 of the Periodic Table.

4. The molecular sieve of claim 3 , wherein the molecular sieve has a composition, as-synthesized and in its anhydrous state, in terms of mole ratios, as follows:

SiO 2 /Al 2 O 3
20 to 40

(Q + A)/SiO 2
0.01 to 0.10

M/SiO 2
0.01 to 0.20.

5. The molecular sieve of claim 3 , wherein the molecular sieve has, in its as-synthesized form, an X-ray diffraction pattern substantially as shown in the following Table:

2-Theta
d-spacing (nm)
Relative Intensity

 7.78 ± 0.20
1.136
VS

 9.74 ± 0.20
0.907
W

11.79 ± 0.20
0.750
W

13.46 ± 0.20
0.657
S

14.10 ± 0.20
0.627
W

15.53 ± 0.20
0.570
M

16.62 ± 0.20
0.533
W

19.51 ± 0.20
0.455
W

20.56 ± 0.20
0.432
VS

21.40 ± 0.20
0.415
M

23.38 ± 0.20
0.380
S

23.76 ± 0.20
0.374
VS

24.88 ± 0.20
0.358
 W.

Assignees

• Xie Dan
• Zones Stacey Ian
• Lew Christopher Michael
• Davis Tracy Margaret
• Chevron Usa Inc

Inventors

• Xie Dan
• Zones Stacey Ian
• Lew Christopher Michael
• Davis Tracy Margaret

Classifications

• C01B39/30 Primary

  Erionite or offretite type, e.g. zeolite T · CPC title

• B01J29/54

  Noble metals · CPC title

• C01B39/305 Primary

  using at least one organic template directing agent · CPC title

• B01J29/50

  of the erionite or offretite type, e.g. zeolite T, as exemplified by patent document US2950952 · CPC title

• B01J29/56

  Iron group metals or copper · CPC title