PROCÉDÉ CONTINU DE CARBONYLATION D'ALCOOLS, ET NOTAMMENT DE PHÉNYLALCOOLS
    9.
    发明公开
    PROCÉDÉ CONTINU DE CARBONYLATION D'ALCOOLS, ET NOTAMMENT DE PHÉNYLALCOOLS 审中-公开
    连续法进行羰基化醇,尤其是苯基醇

    公开(公告)号:EP2651870A2

    公开(公告)日:2013-10-23

    申请号:EP11811095.6

    申请日:2011-12-13

    申请人: Aet Group

    IPC分类号: C07C51/12 C07C51/14 C07C61/08

    摘要: The invention relates to a continuous method for the carbonylation of an (R
    1 R
    3 )C - X alcohol in acid, where: R
    1 and R
    3 are radicals bonded to the carbon atom by means of a single covalent bond, or an aliphatic cyclic compound that integrates the central carbon atom and bonds to the latter on each side by means of a single covalent bond; and C - X is C(R) - OH, where R is (Z
    1 Z
    2 )HC- or (Z
    1 Z
    2 )C-, it being a given that said radical (Z
    1 Z
    2 )C- can be a substituted or unsubstituted unsaturated cyclic compound such as a benzene cyclic compound. Said method is carried out in a piston reactor provided with a mechanical axial agitation means, and in said method: a) at least one liquid phase comprising said raw alcohol is continuously added, optionally into an appropriate solvent, and a strong acid is also continuously added; b) said at least one liquid phase is subjected to mechanically axially agitated under the influence of a CO pressure of 2 to 250 bar during a transit time t of between 10 seconds and 10 minutes; and c) the liquid phase is removed from said reactor, and in said method, the temperature increase ΔT of the liquid, between the input thereof and removal thereof in/from the reactor, is controlled such that the ratio ΔΤ/AT
    ad (where AT
    ad is the adiabatic temperature increase) is between 0.02 and 0.6 when the ratio between the characteristic heat transfer time t
    therm and the characteristic matter transfer time t
    mat is between 1 and 50.