Process for the hydrocarbonylation of methanol to ethanol in the presence of an inert liquid
    7.
    发明公开
    Process for the hydrocarbonylation of methanol to ethanol in the presence of an inert liquid 失效
    对于甲醇的hydrocarbonylation过程在惰性液体存在乙醇。

    公开(公告)号:EP0001937A1

    公开(公告)日:1979-05-16

    申请号:EP78300608.3

    申请日:1978-11-08

    Abstract: Ethanol is produced by reacting methanol with hydrogen and carbon monoxide at elevated temperature and pressure in the presence of a catalyst comprising cobalt, an iodide or a bromide and a compound having the formula X(A)(B)(C) in which formula X is nitrogen or phosphorus and A, B and C are individually monovalent organic radicals, or X is phosphorus and any two of A, B and C together form an organic divalent cyclic ring system bonded to the X atom, or X is nitrogen and all of A, B and C form an organic trivalent cyclic ring system bonded to the X atom, and in the additional presence of an added inert liquid which is characterised as a compound capable of forming, under normal conditions of temperature and pressure, a separate phase in the presence of methanol containing up to 20% w/w water, which compound contains in its structure bonds other than carbon/carbon and carbon/hydrogen. Typical of the inert liquids which may be employed are chlorobenzene, decanoic acid, polydimethylsiloxane fluid and methyl phenyl silicone fluid. The addition of the inert liquid suppresses' side-reactions and thereby increases the total yield and selectivity to ethanol.

Patent Agency Ranking