Hydrogenolysis of polyalkylene glycols to produce monoethylene glycol monoalkyl ethers, monoethylene glycol and ethanol
US4649225A · kind A · utility
1Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | May 21, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a process for selectively cleaving a polyalkylene glycol, e.g., diethylene glycol, containing at least one ether group therein at a carbon-to-oxygen covalent bond and independently at a carbon-to-carbon covalent bond by heating the polyalkylene glycol with molecular hydrogen in the presence of a hydrogenation catalyst containing iridium to produce at least one of monoethylene glycol monoethyl ether, monoethylene glycol monomethyl ether, monoethylene glycol and ethanol. Monoethylene glycol monoethyl ether can be produced in significant amounts by employing the process of this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.