Zeolites derivatized with sulfonic acids
US5204076A · kind A · utility
4Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Jul 16, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/27
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to sulfonic acid derivatives of crystalline porous materials having uniform pore size with an average pore size greater than 5 Angstroms or a Constraint Index of ten or less. In a preferred embodiment an acid treated crystalline porous material is reacted with a reagent to form the sulfonic acid derivative. The new products can be used as acid catalysts for acid catalyzed reactions. An example is the use of these materials in acid catalyzed etherification of methanol with isobutene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.