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    • 3. 发明公开
    • PROCESS FOR PREPARATION OF PROPYLENE OXIDE
    • VERFAHREN ZUR HERSTELLUNG VON PROPYLENOXID
    • EP1437350A4
    • 2006-01-04
    • EP02799466
    • 2002-09-12
    • SUMITOMO CHEMICAL CO
    • TSUJI JUNPEIISHINO MASARU
    • C07D301/19C07D301/32C07D303/04
    • C07D301/19C07D301/32
    • A process for the preparation of propylene oxide which comprises the following steps, wherein alcohols having two or three carbon atoms, cyclohexanol and/or isopropylcyclohexane formed as by-products are removed from the system at one or more stages either during the steps or between the steps: oxidation step of preparing cumene hydroperoxide by oxidizing cumene, epoxidation step of reacting the cumene hydroperoxide obtained in the oxidation step with propylene to form propylene oxide and cumyl alcohol, and hydrogenolysis step of preparing cumene by hydrogenolysis of the cumyl alcohol obtained in the epoxidation step and recycling the cumene to the oxidation step as the material.
    • 制备环氧丙烷的方法包括以下步骤,其中在步骤中或在步骤之间的一个或多个步骤中从体系中除去具有两个或三个碳原子的醇,环己醇和/或异丙基环己烷作为副产物 步骤:通过氧化异丙基苯制备氢过氧化枯烯的氧化步骤,使在氧化步骤中获得的氢过氧化枯烯与丙烯反应以形成氧化丙烯和枯基醇的环氧化步骤,以及通过氢解环氧化中获得的枯基醇制备枯烯的氢解步骤 将异丙基苯作为原料循环至氧化步骤。