Supported metal interaction catalysts
US4149998A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1977 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Feb 23, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/847
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to a class of heterogeneous catalysts. More particularly, it pertains to catalysts consisting of group VIII metals dispersed on oxide carriers selected from the group consisting of Ti, V, Nb and Ta and mixtures thereof, and zirconium titanate and BaTiO.sub.3, it having been discovered that these oxide carriers are capable of exerting remarkable effects on the properties of the Group VIII metals so dispersed. Among the strong effects on the properties of supported Group VIII metals which these carriers have been observed to bring about are the suppression of the capacity of the Group VIII metals to chemisorb hydrogen at room temperature, the suppression of the capacity of the Group VIII metals to chemisorb carbon monoxide at room temperature and profound alterations in the activity and/or selectivity of various Group VIII metals in reactions such as the dehydrocyclization of n-heptane and the hydrogenolysis of ethane. These catalyst compositions which exhibit suppression of H.sub.2 and CO chemisorption are prepared by methods known in the art, but differ from the prior art methods in that reduction in a hydrogen or other reducing gas atmosphere at a temperatur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.