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    Process for preparing methylmercaptopropionaldehyde
    2.
    发明授权
    Process for preparing methylmercaptopropionaldehyde 有权
    甲基巯基丙醛的制备方法

    公开(公告)号：US08759592B2

    公开(公告)日：2014-06-24

    申请号：US14067098

    申请日：2013-10-30

    申请人： Caspar Heinrich Finkeldei ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

    发明人： Caspar Heinrich Finkeldei ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

    IPC分类号： C07C319/20

    CPC分类号： C07C319/20 ,  C07C319/16 ,  C07C323/22

    摘要： A process for preparing methylmercaptopropionaldehyde in a single reaction unit, is provided. According to the preferred embodiment, the process comprises, simultaneously contacting a gaseous mixture comprising acrolein with a liquid mixture comprising methylmercaptopropionaldehyde, methyl mercaptan, a catalyst and methylmercaptopropionaldehyde methyl thiohemiacetal in the reactive absorber; absorbing the acrolein from the gaseous mixture into the liquid mixture; reacting the absorbed acrolein with the methyl mercaptan or the methylmercaptopropionaldehyde methyl thiohemiacetal to obtain methylmercapto-propionaldehyde; removing gaseous impurities and by-products from the liquid mixture; and separating the obtained methylmercaptopropionaldehyde product from the reactive absorber, directing a portion of the separated product to storage or further processing and recycling the remaining portion to the reactive absorber; wherein the methyl mercaptan optionally comprises dimethyl sulfide or dimethyl ether.

    摘要翻译： 提供了在单个反应单元中制备甲基巯基丙醛的方法。 根据优选实施方案，该方法包括同时使包含丙烯醛的气体混合物与包含甲基巯基丙醛，甲硫醇，催化剂和甲基巯基丙醛甲硫基缩醛的液体混合物接触; 将丙烯醛从气态混合物吸收到液体混合物中; 使吸收的丙烯醛与甲基硫醇或甲基巯基丙醛甲基硫代缩甲醛反应，得到巯基丙醛甲缩醛; 从液体混合物中除去气态杂质和副产物; 并将所获得的甲基巯基丙醛产物与反应性吸收剂分离，将一部分分离产物导入储存或进一步加工并将剩余部分再循环至反应性吸收剂; 其中甲硫醇任选地包括二甲基硫醚或二甲醚。

    PROCESS FOR PREPARING METHYLMERCAPTOPROPIONALDEHYDE
    3.
    发明申请
    PROCESS FOR PREPARING METHYLMERCAPTOPROPIONALDEHYDE 有权
    制备甲基苦参碱的方法

    公开(公告)号：US20140051890A1

    公开(公告)日：2014-02-20

    申请号：US14067098

    申请日：2013-10-30

    申请人： Caspar Heinrich FINKELDEI ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

    发明人： Caspar Heinrich FINKELDEI ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

    IPC分类号： C07C319/20

    CPC分类号： C07C319/20 ,  C07C319/16 ,  C07C323/22

    摘要： A process for preparing methylmercaptopropionaldehyde in a single reaction unit, is provided. According to the preferred embodiment, the process comprises, simultaneously contacting a gaseous mixture comprising acrolein with a liquid mixture comprising methylmercaptopropionaldehyde, methyl mercaptan, a catalyst and methylmercaptopropionaldehyde methyl thiohemiacetal in the reactive absorber; absorbing the acrolein from the gaseous mixture into the liquid mixture; reacting the absorbed acrolein with the methyl mercaptan or the methylmercaptopropionaldehyde methyl thiohemiacetal to obtain methylmercapto-propionaldehyde; removing gaseous impurities and by-products from the liquid mixture; and separating the obtained methylmercaptopropionaldehyde product from the reactive absorber, directing a portion of the separated product to storage or further processing and recycling the remaining portion to the reactive absorber; wherein the methyl mercaptan optionally comprises dimethyl sulfide or dimethyl ether.

    摘要翻译： 提供了在单个反应单元中制备甲基巯基丙醛的方法。 根据优选实施方案，该方法包括同时使包含丙烯醛的气体混合物与包含甲基巯基丙醛，甲硫醇，催化剂和甲基巯基丙醛甲硫基缩醛的液体混合物接触; 将丙烯醛从气态混合物吸收到液体混合物中; 使吸收的丙烯醛与甲基硫醇或甲基巯基丙醛甲基硫代缩甲醛反应，得到巯基丙醛甲缩醛; 从液体混合物中除去气态杂质和副产物; 并将所获得的甲基巯基丙醛产物与反应性吸收剂分离，将一部分分离产物导入储存或进一步加工并将剩余部分再循环至反应性吸收剂; 其中甲硫醇任选地包括二甲基硫醚或二甲醚。

    Process for preparing methylmercaptopropionaldehyde
    5.
    发明授权
    Process for preparing methylmercaptopropionaldehyde 有权
    甲基巯基丙醛的制备方法

    公开(公告)号：US08624066B2

    公开(公告)日：2014-01-07

    申请号：US13337434

    申请日：2011-12-27

    申请人： Caspar Heinrich Finkeldei ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

    发明人： Caspar Heinrich Finkeldei ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

    IPC分类号： C07C319/18

    CPC分类号： C07C319/20 ,  C07C319/16 ,  C07C323/22

    摘要： A process for preparing methylmercaptopropionaldehyde in a single reaction unit, is provided. According to the preferred embodiment, the process comprises, simultaneously contacting a gaseous mixture comprising acrolein with a liquid mixture comprising methylmercaptopropionaldehyde, methyl mercaptan, a catalyst and methylmercaptopropionaldehyde methyl thiohemiacetal in the reactive absorber; absorbing the acrolein from the gaseous mixture into the liquid mixture; reacting the absorbed acrolein with the methyl mercaptan or the methylmercaptopropionaldehyde methyl thiohemiacetal to obtain methylmercapto-propionaldehyde; removing gaseous impurities and by-products from the liquid mixture; and separating the obtained methylmercaptopropionaldehyde product from the reactive absorber, directing a portion of the separated product to storage or further processing and recycling the remaining portion to the reactive absorber; wherein the methyl mercaptan optionally comprises dimethyl sulfide or dimethyl ether.

    摘要翻译： 提供了在单个反应单元中制备甲基巯基丙醛的方法。 根据优选实施方案，该方法包括同时使包含丙烯醛的气体混合物与包含甲基巯基丙醛，甲硫醇，催化剂和甲基巯基丙醛甲硫基缩醛的液体混合物接触; 将丙烯醛从气态混合物吸收到液体混合物中; 使吸收的丙烯醛与甲基硫醇或甲基巯基丙醛甲基硫代缩甲醛反应，得到甲基巯基丙醛; 从液体混合物中除去气态杂质和副产物; 并将所获得的甲基巯基丙醛产物与反应性吸收剂分离，将一部分分离产物导入储存或进一步加工并将剩余部分再循环至反应性吸收剂; 其中甲硫醇任选地包括二甲基硫醚或二甲醚。

    PROCESS FOR PREPARING METHYLMERCAPTOPROPIONALDEHYDE
    6.
    发明申请
    PROCESS FOR PREPARING METHYLMERCAPTOPROPIONALDEHYDE 有权
    制备甲基苦参碱的方法

    公开(公告)号：US20120165573A1

    公开(公告)日：2012-06-28

    申请号：US13337434

    申请日：2011-12-27

    申请人： Caspar Heinrich FINKELDEI ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

    发明人： Caspar Heinrich FINKELDEI ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

    IPC分类号： C07C319/18

    CPC分类号： C07C319/20 ,  C07C319/16 ,  C07C323/22

    摘要： A process for preparing methylmercaptopropionaldehyde in a single reaction unit, is provided. According to the preferred embodiment, the process comprises, simultaneously contacting a gaseous mixture comprising acrolein with a liquid mixture comprising methylmercaptopropionaldehyde, methyl mercaptan, a catalyst and methylmercaptopropionaldehyde methyl thiohemiacetal in the reactive absorber; absorbing the acrolein from the gaseous mixture into the liquid mixture; reacting the absorbed acrolein with the methyl mercaptan or the methylmercaptopropionaldehyde methyl thiohemiacetal to obtain methylmercapto-propionaldehyde; removing gaseous impurities and by-products from the liquid mixture; and separating the obtained methylmercaptopropionaldehyde product from the reactive absorber, directing a portion of the separated product to storage or further processing and recycling the remaining portion to the reactive absorber; wherein the methyl mercaptan optionally comprises dimethyl sulfide or dimethyl ether.

    摘要翻译： 提供了在单个反应单元中制备甲基巯基丙醛的方法。 根据优选实施方案，该方法包括同时使包含丙烯醛的气体混合物与包含甲基巯基丙醛，甲硫醇，催化剂和甲基巯基丙醛甲硫基缩醛的液体混合物接触; 将丙烯醛从气态混合物吸收到液体混合物中; 使吸收的丙烯醛与甲基硫醇或甲基巯基丙醛甲基硫代缩甲醛反应，得到甲基巯基丙醛; 从液体混合物中除去气态杂质和副产物; 并将所获得的甲基巯基丙醛产物与反应性吸收剂分离，将一部分分离产物导入储存或进一步加工并将剩余部分再循环至反应性吸收剂; 其中甲硫醇任选地包括二甲基硫醚或二甲醚。