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    Method for producing polyether alcohols
    7.
    发明授权
    Method for producing polyether alcohols 失效
    聚醚醇的制造方法

    公开(公告)号：US07968754B2

    公开(公告)日：2011-06-28

    申请号：US10578874

    申请日：2004-11-06

    申请人： Thomas Ostrowski ,  Raimund Ruppel ,  Eva Baum ,  Kathrin Harre

    发明人： Thomas Ostrowski ,  Raimund Ruppel ,  Eva Baum ,  Kathrin Harre

    IPC分类号： C07C41/03

    CPC分类号： C08G65/2663 ,  C08G18/4866 ,  C08G65/2696

    摘要： The invention relates to a process for the continuous preparation of polyether alcohols by reaction of alkylene oxides with H-functional starter substances in the presence of DMC catalysts, which comprises, at the beginning of the process a) firstly placing initial charge material and DMC catalyst in a reactor, b) metering in alkylene oxide so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 100 to 3000 seconds, c) metering in starter substance during or after step b) so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 5 to 500 seconds, d) after the fill level in the reactor which is desired for continuous operation of the reactor has been reached, taking product off continuously from the reactor while at the same time metering in starter substance and alkylene oxides in such an amount that the fill level in the reactor remains constant and metering in DMC catalyst so that the catalyst concentration necessary for continuous operation of the reactor is maintained in the reactor.

    摘要翻译： 本发明涉及一种通过在DMC催化剂存在下使烯化氧与H官能起始物质反应来连续制备聚醚醇的方法，该方法在方法开始时包括：a）首先将初始的电荷材料和DMC催化剂 在反应器中，b）在环氧烷中计量，使得在100至3000秒的时间内达到维持反应器连续操作的计量速率，c）在步骤b）期间或之后计量起始物质，使得 在5至500秒的时间内达到维持反应器连续运行的计量率，d）在达到反应器连续运行所需反应器的填充量后，连续停止生产 同时在起始物质和环氧烷中同时计量反应器中的填充水平保持恒定并在DMC催化剂中计量的量 使得在反应器中保持连续操作反应器所需的催化剂浓度。

    Preparation of polyether alcohols
    9.
    发明申请
    Preparation of polyether alcohols 审中-公开
    聚醚醇的制备

    公开(公告)号：US20050107643A1

    公开(公告)日：2005-05-19

    申请号：US10712707

    申请日：2003-11-13

    申请人： Thomas Ostrowski ,  Raimund Ruppel ,  Eva Baum ,  Kathrin Harre

    发明人： Thomas Ostrowski ,  Raimund Ruppel ,  Eva Baum ,  Kathrin Harre

    IPC分类号： C07C43/11 ,  C08G65/00 ,  C08G65/10 ,  C08G65/12 ,  C08G65/26

    CPC分类号： C08G65/2663 ,  C08G18/4866 ,  C08G65/2696

    摘要： The invention relates to a process for the continuous preparation of polyether alcohols by reaction of alkylene oxides with H-functional starter substances in the presence of DMC catalysts, which comprises, at the beginning of the process a) firstly placing initial charge material and DMC catalyst in a reactor, b) metering in alkylene oxide so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 100 to 3 000 seconds, c) metering in starter substance during or after step b) so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 5 to 500 seconds, d) after the fill level in the reactor which is desired for continuous operation of the reactor has been reached, taking product off continuously from the reactor while at the same time metering in starter substance and alkylene oxides in such an amount that the fill level in the reactor remains constant and metering in DMC catalyst so that the catalyst concentration necessary for continuous operation of the reactor is maintained in the reactor.

    摘要翻译： 本发明涉及一种通过在DMC催化剂存在下使烯化氧与H官能起始物质反应来连续制备聚醚醇的方法，该方法在方法开始时包括：a）首先将初始的电荷材料和DMC催化剂 在反应器中，b）在环氧烷中计量，使得在100至3000秒的时间内达到维持反应器连续操作的计量速率，c）在步骤b）或之后计量起始物质 在5至500秒的时间内达到维持反应器连续运行的计量速率，d）在达到反应器连续运行所需反应器的填充量后，将产品关闭 连续地从反应器中同时在起始物质和环氧烷中计量，使得反应器中的填充水平保持恒定并且在DMC cata中计量 使得在反应器中保持连续操作反应器所需的催化剂浓度。