Method for preparing acrolein from glycerol by catalytic dehydration of glycerol using a heteropolyacid catalyst
US8604234B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Dec 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a method for preparing acrolein from glycerol or glycerin, according to which dehydration of glycerol or glycerin is carried out in the presence of a catalyst which consists in at least one silica modified with zirconium dioxide, titanium dioxide or tungsten trioxide or any combination of these oxides, and a heteropolyacid. This method may be used for making 3-(methylthio)propionic aldehyde (MMP), 2-hydroxy-4-methylthiobutyronitrile (HMBTN), methionine or its analogs, from acrolein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.