Modified solid catalyst materials
US3980586A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1974 |
| Grant date | Sep 14, 1976 |
| Priority date | — |
| Expiry date | Aug 28, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Refractory metal oxide solid materials, characterized by the presence of surface hydroxyl groups, which have undergone modification by being subjected to the sequential steps of (1) silylating, (2) calcining and (3) steaming are provided. Said silylating step is accomplished by contacting said solid material with an organic-or halogen-substituted silane at a temperature of between about 25.degree.C and about 500.degree.C to effect bonding between said silane and the surface hydroxyl groups of said solid. Said calcining step is accomplished by heating the resulting silylated solid at a temperature and for a time sufficient to remove substantially all of any introduced organic or halogen substituent. Said steaming step is accomplished by contacting the resulting calcined solid with an atmosphere containing at least 2 percent by volume of steam at a temperature of between about 900.degree.F and about 1600.degree.F for at least about 1/2 hour. Organic compound conversion, e.g. hydrocarbon compound conversion, such as, for example, cracking with one or more of said modified refractory metal oxide solid materials as a catalyst is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.