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    • 5. 发明授权
    • Process for the epoxidation of olefins
    • 烯烃环氧化方法
    • US06646141B2
    • 2003-11-11
    • US10203184
    • 2002-10-04
    • Willi HofenGeorg ThieleAlexander Möller
    • Willi HofenGeorg ThieleAlexander Möller
    • C07D30112
    • C07D301/12C07D301/32
    • The present invention relates to a process for the working up of a product stream from the epoxidation of olefins that contains olefin, olefin oxide, water-miscible organic solvent and water, by separating this product stream into an overhead product containing olefin, olefin oxide and organic solvent, and into a bottom product containing organic solvent and water, wherein the separation takes place in a pre-evaporator with at most 5 theoretical separation stages, and 20 to 60% of the total amount of organic solvent introduced with the product stream is removed with the overhead product and the residue remains in the bottom product, as well as a process for the epoxidation of olefins that includes this working up stage.
    • 本发明涉及一种通过将该产物流分离成含有烯烃,烯烃氧化物的塔顶产物和来自含有烯烃,烯烃氧化物,水混溶性有机溶剂和水的烯烃的环氧化来处理产物流的方法, 有机溶剂,并进入含有有机溶剂和水的底部产物,其中分离在预蒸发器中进行至多5个理论分离阶段,并且与产物流引入的有机溶剂的总量的20至60% 用塔顶产物除去残余物残留在底部产物中,以及包括该加工阶段的烯烃环氧化方法。