초록 ▼

Ethanol is prepared by hydrogenating acetic acid under superatmospheric pressure and at elevated temperatures by a process wherein a predominantly cobalt-containing catalyst is used and acetic acid and hydrogen are passed through the reactor, at from 210°to 330°C. and under from 10 to 350 bar, under

Ethanol is prepared by hydrogenating acetic acid under superatmospheric pressure and at elevated temperatures by a process wherein a predominantly cobalt-containing catalyst is used and acetic acid and hydrogen are passed through the reactor, at from 210°to 330°C. and under from 10 to 350 bar, under conditions such that a liquid phase in not formed during this procedure.

대표청구항 ▼

In a process for the continuous catalytic preparation of ethanol by hydrogenating acetic acid under superatmospheric pressure and at an elevated temperature, the improvement which comprises: carrying out the hydrogenation in a reactor using a catalyst consisting of: either (a) Cobalt; (b) Cobalt and

In a process for the continuous catalytic preparation of ethanol by hydrogenating acetic acid under superatmospheric pressure and at an elevated temperature, the improvement which comprises: carrying out the hydrogenation in a reactor using a catalyst consisting of: either (a) Cobalt; (b) Cobalt and an essentially inert carrier; (c) No less than 50% Cobalt plus one or more members selected from the group consisting of copper manganese, molybdenum, chromium and phosphoric acid; or (d) an essentially inert carrier and an active component which is no less than 50% cobalt plus one or more members selected from the group consisting of copper manganese, molybdenum, chromium and phosphooric acid; and