Hydrogenation catalyst, process for preparing and process for using said catalyst
US5243095A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Apr 24, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/149
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In one embodiment, the invention relates to a catalyst in powdered form comprising the oxides of copper, iron, aluminum and manganese wherein the atomic ratio of copper to iron is at least 1:1. In another embodiment, the invention relates to a process for preparing such hydrogenation catalysts which comprises the steps of PA0 (A) preparing a first aqueous solution containing at least one water-soluble copper salt, at least one water-soluble iron salt, and at least one water-soluble manganese salt; PA0 (B) preparing a second solution containing at least one water-soluble basic aluminum salt and at least one alkaline precipitating agent; PA0 (C) mixing the first and second solutions wherein an insoluble solid is formed; PA0 (D) recovering the soluble solid; and PA0 (E) calcining the recovered solid to form the desired catalyst. The invention also relates to a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.