Selective aldolization of acetone to diacetone alcohol by a solid basic catalyst
US5672764A · kind A · utility
8Cited by
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4Claims
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Key dates
| Filing date | Jan 5, 1996 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Jan 5, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The aldolization is characterized by the use of a solid basic catalyst which has the following general formula EQU (Mg.sup.2+).sub.1-x (Al.sup.3+).sub.x (OH.sup.-).sub.2 !.sup.+x (OH.sup.-).sub.x (H.sub.2 O).sub.n !.sup.-x (II) wherein 0.20.ltoreq.x.ltoreq.0.33 and n has a value of less than 1. This catalyst has a defined crystal structure similar to that of hydrotalcite or, alternatively, of meixnerite. Also disclosed are processes for the preparation of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.