Modified zeolite omega and processes for preparing and using same
US5371311A · kind A · utility
4Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Jul 27, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Forms of zeolite Omega synthesized by hydrothermal crystallization from reaction systems containing alkali metal cations and organic templating agents, modified by calcination in air, ion-exchange, steam calcination and treatment with a low-pH aqueous ammonium ion solution, are significantly improved with respect to surface area, catalytic activity and adsorption capacities for large molecular species. The zeolite compositions of the invention may be used in a variety of hydrocarbon conversion reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.