中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.015 seconds)

    VERFAHREN ZUR HERSTELLUNG VON MERCAPTOALKYLCARBOXYLATEN
    4.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON MERCAPTOALKYLCARBOXYLATEN 有权

    公开(公告)号：EP2748142A1

    公开(公告)日：2014-07-02

    申请号：EP12746099.6

    申请日：2012-08-14

    Applicant: BASF SE

    Inventor： GARLICHS, Florian ,  BALDAMUS, Jens ,  KAIBEL, Gerd

    IPC: C07C319/22 ,  C07C323/12

    CPC classification number: C07C319/12 ,  C07C319/22 ,  Y02P20/127 ,  C07C323/12

    Abstract: The acid-catalysed esterification of mercaptoalkyl alcohols with carboxylic acids to give mercaptoalkyl carboxylates typically results in the formation of unwanted, usually sparingly soluble by-products. The process according to the invention in the absence of acid catalysts avoids the formation of such by-products. Especially in the case of performance of the inventive esterification as a reactive distillation using reactive column and delay vessel, it is possible to obtain good conversion rates even without acid catalyst and simultaneously to substantially avoid the formation of the by-products.

    Abstract translation: 巯基烷基醇与羧酸的酸催化酯化反应生成巯基烷基羧酸酯通常导致形成不希望的，通常微溶的副产物。 根据本发明的方法在不存在酸催化剂的情况下避免了这种副产物的形成。 特别是在使用反应塔和延迟容器作为反应性蒸馏进行本发明的酯化反应的情况下，即使不使用酸催化剂也可以获得良好的转化率，并且同时基本上避免了副产物的形成。

    VERFAHREN ZUR AUFARBEITUNG VON REAKTIONSAUSTRÄGEN AUS DER HYDRIERUNG VON EDDN BZW. EDMN
    10.
    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

    Applicant: BASF SE

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

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

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

    Abstract: 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.

Patent Agency Ranking