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    • 4. 发明授权
    • Process for selective oxidation of olefins to epoxides
    • 将烯烃选择性氧化成环氧化物的方法
    • US08080677B2
    • 2011-12-20
    • US12206335
    • 2008-09-08
    • Bala SubramaniamDaryle H. BuschHyun-Jin LeeMadhav GhantaTie-Pan Shi
    • Bala SubramaniamDaryle H. BuschHyun-Jin LeeMadhav GhantaTie-Pan Shi
    • C07D303/00
    • C07D301/12Y02P20/582
    • A process for the selective oxidation of olefins to epoxides comprising the step of contacting the olefin (propylene or ethylene) with an oxidant (hydrogen peroxide) in the presence of a Lewis acid oxidation catalyst (MTO), organic base (pyridine or its N-oxide), in a solvent system comprising an organic water-miscible solvent (methanol). The system is pressurized using either the olefin itself or by adding an inert pressurizing gas (nitrogen) to increase the pressure between 230 and 700 psi at a temperature between 0.7 and 1.3 times the critical temperature of the olefin. The resulting increased solubility of the olefin in the organic solvent system increases the selectivity and yield of the desired epoxide (propylene oxide or ethylene oxide).
    • 一种将烯烃选择性氧化成环氧化物的方法,包括在路易斯酸氧化催化剂(MTO),有机碱(吡啶或其N-氧化物)存在下使烯烃(丙烯或乙烯)与氧化剂(过氧化氢)接触的步骤, 氧化物),在包含有机水混溶性溶剂(甲醇)的溶剂体系中。 使用烯烃本身或通过加入惰性加压气体(氮气)来加压系统,以在烯烃的临界温度的0.7至1.3倍之间的温度下增加230至700psi之间的压力。 所产生的烯烃在有机溶剂体系中的溶解度增加了所需环氧化物(环氧丙烷或环氧乙烷)的选择性和产率。
    • 6. 发明申请
    • Process for Selective Oxidation of Olefins to Epoxides
    • 烯烃选择性氧化成环氧化物的方法
    • US20090131693A1
    • 2009-05-21
    • US12206335
    • 2008-09-08
    • Daryle H. BuschBala SubramaniamHyun-Jin LeeTie-Pan Shi
    • Daryle H. BuschBala SubramaniamHyun-Jin LeeTie-Pan Shi
    • C07D301/03C07D301/12C09K3/00
    • C07D301/12Y02P20/582
    • A process for the selective oxidation of olefins to epoxides comprising the step of contacting the olefin (propylene or ethylene) with an oxidant (hydrogen peroxide) in the presence of a Lewis acid oxidation catalyst (MTO), organic base (pyridine or its N-oxide), in a solvent system comprising an organic water-miscible solvent (methanol). The system is pressurized using either the olefin itself or by adding an inert pressurizing gas (nitrogen) to increase the pressure between 230 and 700 psi at a temperature between 0.7 and 1.3 times the critical temperature of the olefin. The resulting increased solubility of the olefin in the organic solvent system increases the selectivity and yield of the desired epoxide (propylene oxide or ethylene oxide).
    • 一种将烯烃选择性氧化成环氧化物的方法,包括在路易斯酸氧化催化剂(MTO),有机碱(吡啶或其N-氧化物)存在下使烯烃(丙烯或乙烯)与氧化剂(过氧化氢)接触的步骤, 氧化物),在包含有机水混溶性溶剂(甲醇)的溶剂体系中。 使用烯烃本身或通过加入惰性加压气体(氮气)来加压系统,以在烯烃的临界温度的0.7至1.3倍之间的温度下增加230至700psi之间的压力。 所产生的烯烃在有机溶剂体系中的溶解度增加了所需环氧化物(环氧丙烷或环氧乙烷)的选择性和产率。