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    • 9. 发明授权
    • Epoxidation process
    • 环氧化工艺
    • US08124797B2
    • 2012-02-28
    • US12459065
    • 2009-06-26
    • Jay F. MillerJohn H. Speidel, Jr.
    • Jay F. MillerJohn H. Speidel, Jr.
    • C07D301/12C07D301/06
    • C07D301/12C07D301/32
    • This invention is a process for producing propylene oxide. The process comprises first contacting a titanium zeolite with a reaction feed comprising propylene, hydrogen peroxide, tertiary butyl alcohol, and water to produce a product stream comprising propylene, propylene oxide, propylene glycol, tertiary butyl alcohol, and water. The product stream is distilled to produce a first overhead stream comprising propylene and a first bottoms stream comprising propylene oxide, propylene glycol, tertiary butyl alcohol, and water. The first bottoms stream is distilled to produce a second overhead stream comprising propylene oxide and a second bottoms product stream comprising propylene glycol, tertiary butyl alcohol, and water. The second bottoms stream is distilled to produce a third overhead stream comprising an azeotrope of tertiary butyl alcohol and water and a third bottoms stream comprising propylene glycol and water.
    • 本发明是一种生产环氧丙烷的方法。 该方法包括首先使钛沸石与包含丙烯,过氧化氢,叔丁醇和水的反应进料接触,以产生包含丙烯,环氧丙烷,丙二醇,叔丁醇和水的产物流。 将产物流蒸馏以产生包含丙烯的第一塔顶物流和包含环氧丙烷,丙二醇,叔丁醇和水的第一塔底物流。 将第一塔底物流蒸馏以产生包含环氧丙烷的第二塔顶物流和包含丙二醇,叔丁醇和水的第二塔底物产物流。 蒸馏第二塔底物流以产生包含叔丁醇和水的共沸物的第三塔顶物流和包含丙二醇和水的第三塔底物流。