Zeolite
US-10046316-B2 · Aug 14, 2018 · US
Zeolite synthesis with alkaline earth metal
US10500573B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10500573-B2 |
| Application number | US-201715718624-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 28, 2017 |
| Priority date | Sep 30, 2016 |
| Publication date | Dec 10, 2019 |
| Grant date | Dec 10, 2019 |
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- Title
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Abstract
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Provided is a novel synthesis technique for producing pure phase small pore zeolites employing a synthesis gel of at least one zeolite, a structure directing agent and an alkaline earth metal source. Additionally provided are a novel form of AFX zeolite, a novel synthesis method for producing a zeolite with an increased Al pair content, a catalyst comprising the AFX zeolite in combination with a metal, and methods of using the same.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for making an aluminosilicate zeolite having a small pore framework comprising reacting a synthesis gel comprising at least one zeolite, a structure directing agent, an alkaline earth metal source, and an optional silica source at a temperature of at least about 100° C. until crystals of the small pore zeolite form. 2. The method of claim 1 , wherein the small pore zeolite crystals are at least about 90% phase pure. 3. The method of claim 1 , wherein the synthesis gel is substantially free of alkaline metal. 4. The method of claim 1 , wherein the synthesis gel has one or more of the following compositional molar ratios: SiO 2 /Al 2 O 3 of about 10 to about 80; Na 2 O/Al 2 O 3 of about 0 to about 2; M AE O/Al 2 O 3 of about 0.3 to about 1.5 (M AE can be Ca, Sr, or Ba); SDA 2 O/Al 2 O 3 of about 0.7 to about 20; H 2 O/Al 2 O 3 of about 300 to about 3000; and OH − /SiO 2 of about 0.25 to about 0.5. 5. The method of claim 1 , wherein the SDA cation is 1,3-bis(1-adamantyl)imidazolium, N,N-diethyl-cis 2,6-dimethylpiperidinium, N,N-dimethyl-3,5-dimethylpiperidinium, N,N,N-1-trimethyladamantylammonium, or N,N,N-dimethylethylcyclohexylammonium.
Assignees
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Classifications
not in framework positions · CPC title
Noble metals · CPC title
containing iron group metals, noble metals or copper · CPC title
Synthetic zeolitic molecular sieves · CPC title
Palladium · CPC title
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- What does patent US10500573B2 cover?
- Provided is a novel synthesis technique for producing pure phase small pore zeolites employing a synthesis gel of at least one zeolite, a structure directing agent and an alkaline earth metal source. Additionally provided are a novel form of AFX zeolite, a novel synthesis method for producing a zeolite with an increased Al pair content, a catalyst comprising the AFX zeolite in combination with …
- Who is the assignee on this patent?
- Johnson Matthey Plc
- What technology area does this patent fall under?
- Primary CPC classification B01J29/78. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 10 2019 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).