Selective hydrogenation catalysts containing palladium, also tin and/or lead, and the preparation and use thereof
US5955397A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Nov 6, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/397
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A particulate selective hydrogenation catalyst for transforming unsaturated diolefinic hydrocarbons to .alpha.-olefinic hydrocarbons is described, for the hydrogenation of diolefinic compounds to .alpha.-olefinic compounds at rates which are at least 1.5 times higher than the rate of hydrogenation of .alpha.-olefinic hydrocarbons to saturated compounds. The catalyst contains palladium distributed at the periphery of particles (spherules or extrudates), and at least one element selected from tin and lead. Further, the tin and/or lead is advantageously distributed at the periphery of the spherules or extrudates. The catalyst preparation is also described, as well as a process for selective hydrogenation of diolefins to .alpha.-olefins using the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.