Zeolite, and production method and use therefor
US9919297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2016 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | May 8, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/183
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a novel high-silica zeolite having a high molar ration of a tetravalent element (Y) to a trivalent element (X) in terms of oxide.A zeolite, comprising at least a trivalent element X and a tetravalent element Y, wherein a molar ratio n=YO2/X2O3 in terms of oxide is 9.5 or more, and the zeolite comprises an RHO-type structure, or comprising at least a trivalent element X and a tetravalent element Y, wherein a molar ratio n=YO2/X2O3 in terms of oxide is 9.5 or more, and a characteristic X-ray diffraction pattern. This zeolite is produced by hydrothermal synthesis of a zeolite from an aqueous gel that is prepared by adding a mixed solution comprising a crown ether, an alkali, and water to a solution containing an aluminum atom material, and by then dropwise adding a liquid containing a silicon atom material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.