Hydrogenation of benzoic acid and catalyst suitable therefor
US5336810A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1993 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | May 7, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/255
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a catalyst that is very suitable for the conversion of a benzoic acid into the corresponding benzaldehyde. The catalyst can be obtained via coprecipitation of a manganese salt, a salt from which an acid support is formed, a zinc salt and optionally a copper salt at a pH between 4 and 10, calcination, after precipitation, of the coprecipitate at a temperature of between 300 and 700.degree. C. and then, optionally, reduction of the calcined coprecipitate with the aid of a hydrogen-containing gas mixture. Using such a catalyst the hydrogenation of a benzoic acid can be carried out at lower temperature resulting in energy-savings and, hence, cost-savings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.