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    • 1. 发明申请
    • Process for the epoxidation of olefins
    • 烯烃环氧化方法
    • US20030040637A1
    • 2003-02-27
    • US10226766
    • 2002-08-23
    • Willi HofenThomas HaasWolfgang WollGeorg Thiele
    • C07D31/32C07D301/12
    • C07D301/12
    • 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 less than 10 theoretical separation stages at a pressure of 1.5 to less than 3 bar, and 20 to 60% of the total amount of organic solvent introduced with the product stream is removed with the overhead product and the balance remains in the bottom product. A process for the epoxidation of olefins that includes this working up stage is also disclosed.
    • 通过将该产物流分离成含有烯烃,烯烃氧化物和有机溶剂的塔顶产物,来处理含有烯烃,烯烃氧化物,水混溶性有机溶剂和水的烯烃的环氧化产物流的方法, 含有有机溶剂和水的底部产物,其中在预蒸发器中进行分离,在1.5至小于3巴的压力下具有小于10个理论分离级,并且引入的有机溶剂总量的20至60% 产物流用架空产品除去,余量保留在底部产物中。 还公开了包括该加工阶段的烯烃环氧化方法。