Method of producing lower alcohols from glycerol
US7663004B2 · kind B2 · utility
16Cited by
6References
18Claims
0Family size
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Key dates
| Filing date | Mar 24, 2005 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Feb 19, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A reactive-separation process converts glycerin into lower alcohols, having boiling points less than 200° C., at high yields. Conversion of natural glycerin to propylene glycol through an acetol intermediate is achieved at temperatures from 150° to 250° C. at a pressure ranging from 1 and 25 bar. The preferred applications of the propylene glycol are as an antifreeze, deicing compound, or anti-icing compound. The preferred catalyst for this process in a copper-chromium powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.