Process for preparing esters of alcohols and glycerin from triglycerides and alcohols using a heterogeneous catalyst in the presence of a controlled quantity of water
US8362288B2 · kind B2 · utility
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2References
21Claims
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Key dates
| Filing date | Sep 10, 2010 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Aug 5, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing a composition of alcoholic esters of straight chain monocarboxylic acids containing 6 to 26 carbon atoms and glycerin, starting from a vegetable or animal oil, neutral or acidic, virgin or recycled with mono-alcohols containing 1 to 18 atoms, in the presence of a zinc aluminate catalyst and in the presence of a controlled quantity of water, can directly produce, in one or more steps, an ester which can be used as a propellant or fuel along with glycerin having improved purity containing a reduced quantity of ethers by using a partially dried catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.