Catalyst composition including attrition particles and method for making same
US6509290B1 · kind B1 · utility
75Cited by
10References
22Claims
0Family size
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Key dates
| Filing date | Jul 17, 2000 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jul 17, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/514
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a molecular sieve catalyst which contains molecular sieve-containing attrition particles and virgin molecular sieve, the attrition particles having been recycled from a catalyst manufacture process or from a reaction system. The catalyst can be used in a variety of catalytic reaction processes. A desired process is making olefins from an oxygenate feedstock. The recovery and use of the attrition particles in the catalyst is beneficial in minimizing waste, thereby reducing problems relating to both environmental and economic constraints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.