Process for the production of symmetrical ethers from secondary alcohols
US5444168A · kind A · utility
29Cited by
12References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1994 |
| Grant date | Aug 22, 1995 |
| Priority date | — |
| Expiry date | May 16, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Secondary alcohols are converted to symmetrical secondary alkyl ethers in high selectivity. The method employs acidic solid metallosilicate catalyst particles to accomplish the etherification by selective intermolecular dehydration of secondary alcohol to form di-secondary alkyl ethers. Preferably, the catalysts are solid shape selective aluminosilicate particles, especially zeolite such as ZSM-5, zeolite HY and zeolite Beta. Continuous separation of by-product olefin and ether during the etherification reaction improves selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.