Process and apparatus for the preparation of ether

Details Process and apparatus for the preparation of ether Process and apparatus for the preparation of ether

1987-01-21

1989-02-28

Schor, Kenneth M.

Distillation: processes, separatory

With disparate physical separation

203 94, 203 97, 203 98, 203DIG23, 202204, 568697, 568699, 568913, B01D 314, C07C 4142

Patent

active

048082708

ABSTRACT:
For the preparation of an ether, e.g., tertiary amyl methyl ether, an olefin-containing feed stream is catalytically etherified with an alcohol, e.g., methyl alcohol. The etherification product is fractionally distilled into an overhead fraction containing essentially unreacted, light hydrocarbons and unreacted alcohol and into a bottoms fraction containing essentially the desired ether. The overhead fraction is condensed and cooled to resultant immiscible phases, of which one contains essentially the alcohol and the other contains essentially the hydrocarbons, are removed separately from each other. Water may be added to the overhead stream to facilitate the formation of the two liquid phases.

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patent: 4302298 (1981-11-01), Mikitenko et al.
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patent: 4544776 (1985-10-01), Osterburg
Torck et al., "Methanol For Motor Fuel Via the Ethers Route", CEP, Aug. 1982, pp. 36-45.
Soviet Inventions Illustrated, Section CH, Week B, 49, 23, Jan. 1980, Derwent Publications Ltd., London; H 06 -SU 652 169.

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