Method for the manufacture of 1,3-propanediol
USRE34349E · kind E · reissue
8Cited by
4References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 15, 1992 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Apr 15, 2012 |
Classification
- Technology area (CPC —)General
Abstract
1,3-Propanediol is manufactured by the hydration of acrolein in an aqueous solution over a fully hydrated, alumina-bound zeolite with a pore size >5 angstroms to form 3-hydroxypropanal and hydrogenation of the 3-hydroxypropanal typically in an aqueous solution in the presence of a nickel catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.