Zeolite compositions and preparation and use thereof
US7922996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2005 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Nov 11, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/62
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to novel compositions of zeolites or microporous metallosilicates characterized by a continuous spatial distribution of the metal and silicon in the crystals and characterized by a crystal surface enriched in silicon relative to the internal part of the same crystals. This invention also relates to a synthesis method of producing these metallosilicates with spatial distribution of the constituting elements. These novel zeolitic compositions can be used in various hydrocarbon conversion reactions. The crystalline metallosilicates can be selected from the group consisting of aluminosilicates, gallosilicates, ferrosilicates, titanosilicates and borosilicates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.