Improved process for the production of esters from fatty substances having a natural origin
US5424466A · kind A · utility
21Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A description is given of an improved process for the production of esters from fatty substances having a natural origin (animal and vegetable oils) and low molecular weight alcohols, in which the soaps and oily compounds entrained in the alkaline phases are recycled by treating them, following acidification and separation, with a fraction of the glycerol phase produced, in the presence of an alkaline catalyst and for forming preferably a triglyceride or a partly substituted glyceride. This process makes it possible to quantitatively obtain methyl, ethyl, propyl or butyl esters usable as a substitute for gas oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.