Process for producing a cylic ether from an acetic ester of a 1,

Details Process for producing a cylic ether from an acetic ester of a 1, Process for producing a cylic ether from an acetic ester of a 1,

1977-01-28

1978-08-08

Raymond, Richard L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30708

Patent

active

041056795

ABSTRACT:
A process for producing tetrahydrofuran or dihydrofuran from an acetic ester of 1,4-butanediol or 1,4-dihydroxybutene-2 is disclosed in which the raw material liquid acetic ester and steam are reacted in the presence of an acid catalyst in a plurality of reaction zones in liquid-gas countercurrent contact, a gaseous fraction containing the product cyclic ether is recycled to the preceding reaction zone while a liquid fraction containing unreacted raw material is transferred into the succeeding zone and the product cyclic ether is recovered from the gaseous fraction discharged from the first zone by distillation whereby the conversion of the acetic ester into the cyclic ether is improved.

REFERENCES:
patent: 4005112 (1977-01-01), Smith
patent: 4005113 (1977-01-01), Smith
patent: 4010171 (1977-03-01), Smith
patent: 4011244 (1977-03-01), Smith

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