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    VERFAHREN ZUR DESTILLATIVEN REINIGUNG VON EDA
    7.
    发明公开
    VERFAHREN ZUR DESTILLATIVEN REINIGUNG VON EDA 有权

    公开(公告)号：EP3116850A1

    公开(公告)日：2017-01-18

    申请号：EP15709173.7

    申请日：2015-03-11

    申请人： BASF SE

    发明人： LUYKEN, Hermann ,  JAEGLI, Stephanie ,  LORENZ, Michael ,  BRASCHE, Gordon ,  JEGELKA, Markus ,  BECKER, Barbara ,  BAUMANN, Robert ,  MELDER, Johann-Peter ,  BUSCHHAUS, Boris ,  KRUG, Thomas

    IPC分类号： C07C209/16 ,  C07C211/10 ,  C07C209/48 ,  C07C209/84 ,  C07C213/04 ,  C07C253/08 ,  C07C253/30

    CPC分类号： C07C209/84 ,  C07C209/16 ,  C07C209/48 ,  C07C213/04 ,  C07C253/08 ,  C07C253/30 ,  C07C211/10 ,  C07C255/16 ,  C07C255/25 ,  C07C215/08

    摘要： The invention relates to a method for the distillative purification of ethylenediamine (EDA), having the steps a) and b). In step a) a mixture (G1) containing water, EDA, and N-methyl ethylenediamine (N-MeEDA) is supplied into a distillation device (D1) from which the main quantity of the water contained in the mixture (G1) is separated via the head at a pressure of more than 4.8 barA. The water-depleted mixture (G2) is supplied from the sump of (D1) to a distillation device (D2) in step b), and the main quantity of N-MeEDA is distilled out via the head of (D2). The stream S3 obtained from the sump of (D2) contains EDA. The components of water and N-MeEDA contained in the mixture (G1) are largely or completely depleted. Optionally, additional distillation steps can be carried out in order to obtain pure EDA if additional diethylenetriamine (DETA) is contained in the mixture (G1) for example. As long as additional ammonia is contained in the mixture (G1), an ammonia separation process is additionally carried out in the method according to the invention preferably prior to carrying out step a).

    摘要翻译： 本发明涉及具有步骤a）和b）的乙二胺（EDA）蒸馏提纯方法。 在步骤a）中，将含有水，EDA和N-甲基乙二胺（N-MeEDA）的混合物（G1）供给到蒸馏装置（D1）中，混合物（G1）中所含的主要水分离 通过头部压力超过4.8巴。 在步骤b）中，从（D1）的贮槽向蒸馏装置（D2）供给贫水混合物（G2），通过（D2）的头蒸馏出主要量的N-MeEDA。 从（D2）的贮槽获得的流S3包含EDA。 包含在混合物（G1）中的水和N-MeEDA的组分大部分或完全耗尽。 任选地，如果在混合物（G1）中包含另外的二亚乙基三胺（DETA），则可以进行额外的蒸馏步骤以获得纯EDA。 只要混合物（G1）中含有另外的氨，在本发明的方法中，优选在进行步骤a）之前，另外进行氨分离处理。

    VERFAHREN ZUR AUFARBEITUNG VON REAKTIONSAUSTRÄGEN AUS DER HYDRIERUNG VON EDDN BZW. EDMN
    8.
    发明公开
    VERFAHREN ZUR AUFARBEITUNG VON REAKTIONSAUSTRÄGEN AUS DER HYDRIERUNG VON EDDN BZW. EDMN 审中-公开
    METHOD FOR从EDDN OR的加氢处理反应流出物 EDMN

    公开(公告)号：EP2751067A1

    公开(公告)日：2014-07-09

    申请号：EP12751344.8

    申请日：2012-08-30

    申请人： BASF SE

    发明人： LUYKEN, Hermann ,  AHRENS, Sebastian ,  BRASCHE, Gordon ,  BALDAMUS, Jens ,  BAUMANN, Robert ,  HUGO, Randolf ,  JAEGLI, Stephanie ,  MELDER, Johann-Peter ,  PASTRE, Jörg ,  BUSCHHAUS, Boris

    IPC分类号： C07C209/48 ,  C07C209/86 ,  C07C211/14

    CPC分类号： C07C209/48 ,  B01D3/36 ,  C07C209/86 ,  C07C253/16 ,  Y02P20/582 ,  C07C255/25 ,  C07C211/14

    摘要： The invention relates to a method for separating a reaction product stemming from the reaction of EDDN or EDMN with hydrogen in the presence of THF and a catalyst that contains TETA or DETA, water and optionally organic compounds that have a higher or lower boiling point than TETA or DETA, characterized by a) adding the reaction product, once hydrogen was separated off, to a distillation column DK1 in which a THF/water azeotrope is separated off via the top, said azeotrope optionally containing other organic compounds having a lower boiling point than TETA or DETA, and in which column a bottom product which contains TETA or DETA is separated off, and ii) guiding the bottom product from stage i) to a distillation column DK2 and separating THF off via the top and removing a TETA- or DETA-containing stream at the bottom of the column, and iii) condensing the stream from stage i) removed at the top of the column DK1 and adding to the condensate or a part of the condensate an organic solvent, which is substantially immiscible with water, in such an amount that a phase decomposition takes place and separating the mixture so obtained in a phase separator, returning the arising organic phase, which contains THF and the organic solvent which is substantially immiscible with water, to the column DK1 and removing the aqueous phase.