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    VERFAHREN UND ANLAGE ZUR AUFREINIGUNG VON UNGESÄTTIGTEN VERBINDUNGEN
    1.
    发明公开
    VERFAHREN UND ANLAGE ZUR AUFREINIGUNG VON UNGESÄTTIGTEN VERBINDUNGEN 有权
    方法和系统进行净化的不饱和化合物

    公开(公告)号：EP2209760A1

    公开(公告)日：2010-07-28

    申请号：EP08803358.4

    申请日：2008-08-29

    申请人： Evonik Röhm GmbH

    发明人： LAUX, Benedikt ,  MAUL, Christian ,  SCHLEEP, Volker ,  SANDER, Ingo

    IPC分类号： C07C67/54 ,  C07C69/54 ,  B01D1/22

    CPC分类号： B01D1/0088 ,  B01D1/0094 ,  B01D1/22 ,  C07C67/54 ,  C07C69/54

    摘要： The invention relates to a method for purifying unsaturated compounds, wherein the purification is carried out in a plant with at least two evaporators and the evaporators are connected such that a part of the unsaturated compound runs in a circuit wherein the vapour condensed in the first evaporator is isolated and the vapour condensed in the second evaporator is introduced into the first evaporator, characterised in that the mass flow with which the condensed vapours in the first evaporator are isolated from the mixture for purifying is less than the mass flow with which the condensed vapours from the second evaporator are introduced into the first evaporator. The invention further relates to a plant for carrying out said method, comprising at least three evaporators connected to each other such that the residue in the liquid state from the first evaporator can be introduced into the second condenser, the condensed vapours from the second evaporator can be introduced into the first evaporator and the liquid phase residue in the second evaporator can be introduced into the third evaporator and the condensed vapours from the third evaporator cab introduced into second evaporator.