Bridged clays of improved thermal stability process for their preparation and utilization as catalysts
US4753909A · kind A · utility
17Cited by
6References
10Claims
0Family size
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Key dates
| Filing date | Oct 17, 1986 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Oct 17, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/049
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There are provided clays of laminated structure bridged by metallic oxides selected from oxides of aluminum and zirconium and containing from 10 to 50% and preferably from 20 to 40% of an oxide of the metal of the group of the lanthanides, preferably of cerium. The presence of cerium improves the thermal resistance during a dry calcination or even under humid air. The clays can be used as catalysts during the conversion of hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.