Process for the preparation of ethanol from methanol, carbon mon

Details Process for the preparation of ethanol from methanol, carbon mon Process for the preparation of ethanol from methanol, carbon mon

1984-06-15

1985-02-05

Evans, J. E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

260549, 560265, C07C 29136

Patent

active

044979673

ABSTRACT:
An integrated process for the preparation of ethanol from methanol, carbon monoxide and hydrogen feedstock is disclosed; the process featuring the steps of esterifying methanol and acetic acid to form methyl acetate; carbonylating the methyl acetate to form acetic anhydride; esterifying acetic anhydride with a lower aliphatic alcohol in an anhydrous zone to form the corresponding aliphatic acetate; hydrogenating the aliphatic acetate in a second anhydrous zone to form ethanol and the corresponding aliphatic alcohol; and separating the formed ethanol stream into an ethanol product stream and/or aliphatic alcohol recycle stream, which is recycled to react with acetic anhydride.

REFERENCES:
patent: 3260683 (1966-07-01), Endler
patent: 4046807 (1977-09-01), Kuckertz
patent: 4454358 (1984-06-01), Kummer et al.

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