Modified zeolite omega and processes for preparing and using same
US5139761A · kind A · utility
14Cited by
8References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 6, 1992 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Jan 6, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldChemical engineering
- 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.