Process for the manufacture of esters
US5302747A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Aug 24, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method and apparatus for producing esters without the aid of a conventional acid catalyst. A mixture of a monohydric aliphatic alcohol and a lower carboxylic acid is provided in a reaction vessel equipped with a fractionating column connected to a condenser and a collecting vessel. Heating means and a device for passing small bubbles of gas through the reactants are included. The alcohol/carboxylic acid mixture is maintained at a temperature of at least about the boiling point of the alcohol, but below about the boiling point of the carboxylic acid, and a gas inert to the esterification reaction is bubbled through the mixture to remove the esterification product therein formed. The removed vapors are collected and condensed, and the esterification product is recovered in high conversion and purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.