PROCESS FOR PREPARING ALLYL ALCOHOL ALKOXYLATES
    2.
    发明申请
    PROCESS FOR PREPARING ALLYL ALCOHOL ALKOXYLATES 有权
    制备全部醇金酸盐的方法

    公开(公告)号:US20120035381A1

    公开(公告)日:2012-02-09

    申请号:US13197336

    申请日:2011-08-03

    CPC classification number: C07C41/03 C08G65/2696 C07C43/1785

    Abstract: A process for preparing polyether alcohols by reacting one or more unsaturated starters having at least one active hydrogen atom per molecule with one or more alkylene oxides in the liquid phase in the presence of a basic catalyst in a reactor, wherein the one or more alkylene oxides are introduced into the reactor in such a way that the concentration of unreacted alkylene oxide in the liquid reaction mixture in the reactor is increased as far as possible with increasing degree of addition of the alkylene oxide onto the starter, with the proviso that the temperature at the end of a runaway reaction is at any point in time at least 100 K below the onset temperature of the decomposition reaction of the liquid reaction mixture, is proposed.

    Abstract translation: 一种制备聚醚醇的方法,其通过使反应器中碱性催化剂存在下,使每一分子中具有至少一个活性氢原子的一种或多种不饱和起始物与液相中的一种或多种烯化氧反应,其中所述一种或多种烯化氧 以使得反应器中的液体反应混合物中未反应的烯化氧的浓度尽可能地增加到起始物上的环氧烷加成程度增加的方式引入反应器,条件是温度在 失控反应的结束是在液体反应混合物的分解反应开始温度以下至少100K的任何时间点。

    Method for producing polyether alcohols
    3.
    发明授权
    Method for producing polyether alcohols 有权
    聚醚醇的制造方法

    公开(公告)号:US07723465B2

    公开(公告)日:2010-05-25

    申请号:US11994507

    申请日:2006-07-11

    CPC classification number: C08G65/2663 C08G65/2696

    Abstract: The invention provides a process for continuously preparing polyether alcohols using DMC catalysts, which comprises, in a first step, in a continuous reactor, adding alkylene oxides onto H-functional starter substances and transferring the output of this reactor to a second step in a reactor which is divided by closed trays into mutually separate sections, known as compartments, which are connected to one another by external pipelines, in which the output of the reactor from the first step of the reaction passes through the compartments in succession.

    Abstract translation: 本发明提供了一种使用DMC催化剂连续制备聚醚醇的方法,该方法在第一步中包括在连续反应器中,在环氧化物起始物质中加入环氧烷并将反应器的输出转移到反应器中的第二步 其被封闭的托盘分成相互分离的部分,称为隔室,其通过外部管道彼此连接,其中来自反应器的第一步骤的反应器的输出依次通过隔室。

    Method for Producing Polyether Alcohols
    5.
    发明申请
    Method for Producing Polyether Alcohols 有权
    生产聚醚醇的方法

    公开(公告)号:US20070225394A1

    公开(公告)日:2007-09-27

    申请号:US11570794

    申请日:2005-06-22

    Abstract: The invention provides a process for continuously preparing polyether alcohols by adding alkylene oxides to H-functional starter substances using a DMC catalyst, comprising the steps of a) preparing a precursor by continuously metering an H-functional starter substance, an alkylene oxide or a mixture of at least two alkylene oxides and the required amount of DMC catalyst into a continuous reactor, b) continuously withdrawing the precursor from step a) from the reactor, c) continuously metering the product from step a), an alkylene oxide different from that in step a) or a mixture of at least two alkylene oxides different from that in step a) and, if appropriate, the required amount of DMC catalyst into a further continuous reactor.

    Abstract translation: 本发明提供一种通过使用DMC催化剂向环氧化物加成烯键式氧化物连续制备聚醚醇的方法,该方法包括以下步骤:a)通过连续计量H-功能起始物质,烯化氧或混合物来制备前体 的至少两种烯化氧和所需量的DMC催化剂进入连续反应器,b)从反应器中连续地从步骤a)中取出前体,c)连续计量来自步骤a)的产物,不同于 步骤a)或至少两种不同于步骤a)中的环氧烷烃的混合物,如果合适的话,将所需量的DMC催化剂加入另外的连续反应器中。

    Process for preparing reactive polyether polyols having an ethylene oxide end block
    7.
    发明授权
    Process for preparing reactive polyether polyols having an ethylene oxide end block 失效
    制备具有环氧乙烷端嵌段的活性聚醚多元醇的方法

    公开(公告)号:US07186867B2

    公开(公告)日:2007-03-06

    申请号:US10828967

    申请日:2004-04-21

    CPC classification number: C08G65/2696 C08G18/4841 C08G18/4866 C08G65/2663

    Abstract: Process for preparing polyether polyols having an end block of ethylene oxide by addition of alkylene oxides onto H-functional starter substances, in which A) a polyether polyol precursor is prepared by means of double metal cyanide (DMC) catalysis in a semicontinuous mode of operation in which previously prepared polyether polyol together with the DMC catalyst are placed in a reactor and H-functional starter substance and propylene oxide are added continuously, B) the polyether polyol precursor from stage A) is reacted with propylene oxide or an ethylene oxide/propylene oxide mixture in the presence of the DMC catalyst in a continuously operating reactor to give a polyether polyol intermediate, C) the intermediate from stage B) is mixed with an alkali metal hydroxide as catalyst and D) reacted with ethylene oxide in a continuously operating reactor to give the final product, E) the catalyst is separated off from the final product obtained in stage D).

    Abstract translation: 制备具有环氧乙烷端嵌段的聚醚多元醇的方法,其通过在H-功能起始物质上加入环氧烷烃,其中A)聚醚多元醇前体是通过半连续运行模式中的双金属氰化物(DMC)催化制备的 其中将预先制备的聚醚多元醇与DMC催化剂一起放入反应器中,并连续加入H官能引发剂物质和环氧丙烷,B)将来自阶段A)的聚醚多元醇前体与环氧丙烷或环氧乙烷/丙烯 氧化物混合物在DMC催化剂存在下在连续操作的反应器中得到聚醚多元醇中间体,C)将来自阶段B)的中间体与作为催化剂的碱金属氢氧化物混合,并且D)在连续操作的反应器中与环氧乙烷反应 得到最终产物,E)将催化剂从阶段D)中得到的最终产物中分离出来。

    Production of polyether alcohols by usig dmc catalysis
    8.
    发明申请
    Production of polyether alcohols by usig dmc catalysis 审中-公开
    通过使用催化剂生产聚醚醇

    公开(公告)号:US20060167209A1

    公开(公告)日:2006-07-27

    申请号:US10559073

    申请日:2004-06-03

    CPC classification number: C08G65/30 C08G65/2663

    Abstract: The present invention relates to polyetherols are prepared by a process comprising the reaction of at least one alkylene oxide with at least one initiator compound in the presence of at least one double metal cyanide compound to give a polyetherol and the treatment of the resulting polyetherol with steam or with an inert gas and steam, and the polyetherols obtainable by such a process as well as the use thereof for the synthesis of polyurethanes.

    Abstract translation: 本发明涉及通过包括至少一种烯化氧与至少一种引发剂化合物在至少一种双金属氰化物化合物的存在下反应以产生聚乙烯醇并用蒸汽处理得到的聚乙烯醇的方法制备的聚醚 或惰性气体和蒸汽,以及可通过这种方法获得的聚醚,以及其用于合成聚氨酯的用途。

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