Method of producing glycol ethers
US6730815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Dec 3, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method of producing glycol ethers, which are also commonly known as glymes. The method according to the invention includes contacting a glycol with a monohydric alcohol in the presence of a polyperfluorosulfonic acid resin catalyst under conditions effective to produce the glyme. The method of the invention can be used to produce, for example, monoglyme, ethyl glyme, diglyme, ethyl diglyme, triglyme, butyl diglyme, tetraglyme, and their respective corresponding monoalkyl ethers. The present invention also provides a method of producing 1,4-dioxane from mono- or diethylene glycol and tetrahydrofuran from 1,4-butanediol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.