Process for the hydrogenation of maleic acid to 1,4-butanediol
US6486367B1 · kind B1 · utility
5Cited by
9References
12Claims
0Family size
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Key dates
| Filing date | Dec 1, 1997 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Dec 1, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/177
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Maleic acid and/or other hydrogenatable precursors are hydrogenated in the presence of a noble metal catalyst to 1,4-butanediol. The production and yields of 1,4-butanediol are enhanced by the addition of iron to the hydrogenatable precursor feed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.