Process for producing alkyl esters from a vegetable or animal oil and an aliphatic monoalcohol
US6878837B2 · kind B2 · utility
36Cited by
2References
21Claims
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Key dates
| Filing date | Apr 11, 2003 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Apr 11, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/03
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alkyl esters of fatty acids, and high purity glycerin, are produced using a process comprising a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol employing a heterogeneous catalyst, for example based on zinc aluminate, the water content in the reaction medium being controlled to a value that is below a given limiting value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.