Crystalline molecular sieves and related structure-directing agents, methods and systems
US9604197B2 · kind B2 · utility
4Cited by
5References
42Claims
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Key dates
| Filing date | Oct 17, 2014 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Aug 4, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2235/15
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composition and method for preparing molecular sieves having a STW framework structure are described wherein a structure directing agent comprising quaternary cation 1,2,3,4,5-pentamethyl-1H-imidazol-3-ium is contacted with a source of an oxide of a first tetravalent element with or without a source of an oxide of another tetravalent elements and/or a source of a trivalent element in a molar ratio of tetravalent element:trivalent element 100:1 and greater.
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