AMS-1B crystalline borosilicate molecular sieve-based catalyst compositions and process for xylene methylation
US4665254A · kind A · utility
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7Claims
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Key dates
| Filing date | Nov 25, 1985 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Nov 25, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are improved HAMS-1B crystalline molecular sieve-based catalyst compositions made by impregnating such a sieve, which has been incorporated in an inorganic matrix, with a small amount of a magnesium compound, and a process for employing such catalyst compositions for the methylation of a xylene in which the amount of pseudocumene in the product is substantially enhanced compared to that produced by the unimpregnated catalyst composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.