Zeolite
US10046316B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2016 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An object of the present invention is to provide an AFX zeolite having a novel structure. An AFX zeolite having a lattice spacing d of a (004) plane being not less than 4.84 Å and not greater than 5.00 Å, and a molar ratio of silica to alumina being not less than 10 and not higher than 32. Such an AFX zeolite can be produced by a production method comprising a crystallization step of crystallizing a composition at a temperature of not lower than 160° C.; the composition containing a silicon source, an aluminum source, a 1,3-di(1-adamantyl)imidazolium cation, and an alkali metal; a molar ratio of hydroxide ions to silica being less than 0.25 or a molar ratio of silica to alumina being not higher than 27; and a molar ratio of the 1,3-di(1-adamantyl)imidazolium cation to silica being less than 0.20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.