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    • 133. 发明授权
    • Process for producing polyalkylene oxide
    • 生产聚环氧烷的方法
    • US08481788B2
    • 2013-07-09
    • US12863919
    • 2009-01-21
    • Hidetoshi OdakaTakuya MaedaKiyotaka BitoMichihide Homma
    • Hidetoshi OdakaTakuya MaedaKiyotaka BitoMichihide Homma
    • C07C213/00
    • C08G65/2663C08G65/2696
    • The present invention aims to provide a method for producing a polyalkylene oxide, which is capable of improving reduction in reactivity of a double metal cyanide complex catalyst in the case that a low molecular weight initiator is used, and producing the polyalkylene oxide with high productivity at low cost. The method for producing a polyalkylene oxide comprises carrying out a ring-opening addition reaction of an alkylene oxide with an initiator having at least one hydroxy group and having a molecular weight of not more than 300 per hydroxy group in the presence of a double metal cyanide complex catalyst in an organic solvent, wherein the organic solvent is used in an amount of 500 to 1,500 parts by weight relative to 100 parts by weight of the alkylene oxide used at the start of the reaction.
    • 本发明的目的在于提供一种聚环氧烷的制造方法,其能够在使用低分子量引发剂的情况下提高双金属氰化物配合物催化剂的反应性的降低,并且以高生产率制备聚环氧烷烃 低成本。 聚环氧烷的制造方法包括在双金属氰化物存在下,进行环氧烷与具有至少一个羟基的引发剂的开环加成反应,并且每个羟基的分子量不超过300个 在有机溶剂中的复合催化剂,其中相对于100重量份在反应开始时使用的烯化氧,有机溶剂的用量为500至1500重量份。
    • 137. 发明授权
    • Method and device for the production of alkylene oxide addition products
    • 用于生产环氧烷加成产物的方法和装置
    • US08273925B2
    • 2012-09-25
    • US12524172
    • 2007-12-08
    • Stefan FranzenThomas Koelker
    • Stefan FranzenThomas Koelker
    • C07C29/00B01J19/00
    • C08G65/2609C08G65/2615C08G65/2621C08G65/2696
    • A method for the production of alkylene oxide addition products comprising (i) charging a stirred reactor with a starting compound capable of adding on or inserting alkylene oxides, introducing at least one alkylene oxide plus a different diluent gas, wherein a portion of said alkylene oxide reacts in a liquid phase with said starting compound, and the remaining alkylene oxide together with said diluent gas forms a gas phase above the liquid phase, (ii) continuously drawing off said liquid phase from the bottom of the reactor via an outlet stub, and recycling to the top of the reactor via an external circulation system, which comprises at least one heat exchanger and at least one Venturi nozzle within said external circulation system, and (iii) metering said gas phase comprising alkylene oxide into said Venturi nozzle via a vacuum line.
    • 一种用于生产环氧烷加成产物的方法,包括(i)向搅拌反应器中加入能够加入或插入烯化氧的起始化合物,引入至少一种环氧烷加上不同的稀释气体,其中一部分所述环氧烷烃 在液相中与所述起始化合物反应,剩余的环氧烷与所述稀释气体一起在液相上形成气相,(ii)经由出口残渣从反应器的底部连续地抽出液相,以及 通过外部循环系统再循环到反应器的顶部,外部循环系统包括至少一个热交换器和在所述外部循环系统内的至少一个文丘里喷嘴,以及(iii)通过真空将所述包含环氧烷的气相计量到所述文丘里喷嘴中 线。
    • 138. 发明申请
    • PROCESS FOR PRODUCING POLYETHER
    • 生产聚醚的方法
    • US20120172537A1
    • 2012-07-05
    • US13418842
    • 2012-03-13
    • Takeaki ARAIChitoshi Suzuki
    • Takeaki ARAIChitoshi Suzuki
    • C08G65/12C08G18/48C08G65/26
    • C08G65/2663C08G18/4866C08G18/4887C08G65/2696
    • To provide a process for producing a polyether, which comprises subjecting an alkylene oxide and the like to ring-opening addition polymerization to an initiator in the presence of a double metal cyanide complex catalyst (DMC catalyst), which can be carried out by use of a DMC catalyst at a low concentration, and accordingly the amount of the DMC catalyst remaining in a polyether to be obtained can be reduced.A process for producing a polyether, which comprises subjecting an alkylene oxide and an oxygen-containing heterocyclic compound other than an alkylene oxide, to ring-opening addition polymerization to an initiator having a hydroxy group in the presence of a DMC catalyst, wherein prior to the ring-opening addition polymerization, the DMC catalyst and the initiator are subjected to mixing treatment at a temperature of from 125° C. to 180° C. under an absolute pressure of at most 0.06 MPa for from 10 minutes to 24 hours.
    • 提供一种制备聚醚的方法,其包括在双金属氰化物配合物催化剂(DMC催化剂)的存在下,使烯化氧等进行开环加成聚合,引发剂可以通过使用 低浓度的DMC催化剂,因此可以降低残留在所得聚醚中的DMC催化剂的量。 一种制备聚醚的方法,其包括使环氧烷和除了烯化氧以外的含氧杂环化合物在DMC催化剂的存在下开环加成聚合成具有羟基的引发剂,其中在 开环加成聚合,DMC催化剂和引发剂在125℃至180℃的温度下在绝对压力至多为0.06MPa下进行10分钟至24小时的混合处理。