Synthesis of zeolite ssz-16
US-2017334732-A1 · Nov 23, 2017 · US
Synthesis of zeolite SSZ-16
US9868643B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9868643-B2 |
| Application number | US-201715433031-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 15, 2017 |
| Priority date | May 20, 2016 |
| Publication date | Jan 16, 2018 |
| Grant date | Jan 16, 2018 |
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Abstract
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A method is disclosed for synthesizing a zeolite having the framework structure of SSZ-16 using a structure directing agent comprising a dication selected from one or more of 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium]; and 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpyrrolidinium].
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of synthesizing a zeolite having the structure of SSZ-16, the method comprising: (a) preparing a reaction mixture comprising: (1) a source of silicon oxide; (2) a source of aluminum oxide; (3) a source of a Group 1 or 2 metal (M); (4) a structure directing agent (Q) comprises a dication selected from one or more of 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium]; and 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpyrrolidinium]; (5) hydroxide ions; and (6) water; and (b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the zeolite. 2. The method of claim 1 , wherein the reaction mixture has a composition, in terms of molar ratios, as follows: SiO 2 /Al 2 O 3 5 to 100 M/SiO 2 0.10 to 1.00 Q/SiO 2 0.05 to 0.50 OH/SiO 2 0.10 to 1.00 H 2 O/SiO 2 15 to 60. 3. The method of claim 1 , wherein the reaction mixture has a composition, in terms of molar ratios, as follows: SiO 2 /Al 2 O 3 10 to 50 M/SiO 2 0.10 to 0.70 Q/SiO 2 0.10 to 0.30 OH/SiO 2 0.20 to 0.70 H 2 O/SiO 2 20 to 40. 4. The method of claim 1 , wherein the crystallization conditions include a temperature of from 125° C. to 200° C. 5. A zeolite having the structure of SSZ-16 and comprising in its pores a dication selected from one or more of: 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium]; and 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpyrrolidinium]. 6. The zeolite of claim 5 , having, in its as-synthesized and anhydrous form, a composition, in terms of molar ratios, as follows: SiO 2 /Al 2 O 3 5 to 50 Q/SiO 2 >0 to 0.2 M/SiO 2 >0 to 0.2 wherein: (a) Q comprises a dication selected from one or more of: 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium]; and 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpyrrolidinium]; and (b) M is a Group 1 or 2 metal. 7. The zeolite of claim 5 , having, in its as-synthesized and anhydrous form, a composition, in terms of molar ratios, as follows: SiO 2 /Al 2 O 3 5 to 25 Q/SiO 2 >0 to 0.1 M/SiO 2 >0 to 0.1 wherein: (a) Q comprises a dication selected from one or more of: 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium]; and 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpyrrolidinium]; and (b) M is a Group 1 or 2 metal.
Assignees
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Classifications
After-treatment · CPC title
of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 · CPC title
obtained by SEM · CPC title
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
with hydrocarbon radicals, substituted by nitrogen atoms · CPC title
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- What does patent US9868643B2 cover?
- A method is disclosed for synthesizing a zeolite having the framework structure of SSZ-16 using a structure directing agent comprising a dication selected from one or more of 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium]; and 1,1′-(1,4-cyclohexylenedimethyle…
- Who is the assignee on this patent?
- Chevron Usa Inc
- What technology area does this patent fall under?
- Primary CPC classification C01B39/48. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 16 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).