Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-01-26
1979-02-20
Raymond, Richard
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07D30708
Patent
active
041407040
ABSTRACT:
This invention relates to an improved process for producing cyclic ether from an acetic acid ester of 1,4-glycol and water by cyclization reaction which is characterized by solidifying a high boiling by-product with or without a separation accelerator in the reaction residue, separating the solid obtained thereby from the residue of filtration and recycling a filtrate into the reaction zone.
REFERENCES:
patent: 4005113 (1977-01-01), Smith
patent: 4010171 (1977-03-01), Smith
Mitsubishi Chemical Industries Limited
Raymond Richard
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