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    • 1. 发明申请
    • PROCESS FOR PRODUCING EPOXIDES
    • 生产环氧化物的方法
    • WO2010014898A3
    • 2010-03-25
    • PCT/US2009052399
    • 2009-07-31
    • DOW GLOBAL TECHNOLOGIES INCFAN WILLIAM WKNEUPPER CHRISTIAN DNOORMANN SASCHA NPATRASCU RENATE P
    • FAN WILLIAM WKNEUPPER CHRISTIAN DNOORMANN SASCHA NPATRASCU RENATE P
    • C07D301/26
    • C07D301/26B01D3/009Y02P20/127
    • A process for producing epoxides, the process including: (a) feeding at least one aqueous alkali and at least one halohydrin to a reactive distillation column, wherein the reactive distillation column includes a feed zone, a top zone disposed above the feed zone, and a bottom zone disposed below the feed zone; (b) concurrently in the reactive distillation column: (i) reacting at least a portion of the halohydrin with the alkali to form an epoxide; and (ii) stripping water and the epoxide from a basic aqueous residue; (c) recovering the water and the epoxide from the reactive distillation column as an overheads fraction; (d) condensing and phase separating the overheads fraction to form an organic overheads fraction including the epoxide and an aqueous overheads fraction including water; and (e) maintaining a liquid holdup per plate in the feed zone at a residence time of 10 seconds or less.
    • 一种制备环氧化物的方法,该方法包括:(a)将至少一种碱金属和至少一种卤代醇进料到反应性蒸馏塔中,其中反应蒸馏塔包括进料区,设置在进料区上方的顶部区,以及 位于进料区下方的底部区域; (b)在反应蒸馏塔中同时进行:(i)使至少一部分卤代醇与碱反应形成环氧化物; 和(ii)从碱性含水残余物中除去水和环氧化物; (c)从反应蒸馏塔中回收水和环氧化物作为塔顶馏分; (d)冷凝和相分离塔顶馏分以形成包括环氧化物和包含水的含水塔顶馏分的有机塔顶馏分; 和(e)在10秒或更短的停留时间内在进料区中保持每个板的液体滞留量。
    • 3. 发明申请
    • PROCESS FOR PRODUCING EPOXIDES
    • 生产环氧化物的方法
    • WO2010014898A9
    • 2011-03-03
    • PCT/US2009052399
    • 2009-07-31
    • DOW GLOBAL TECHNOLOGIES INCFAN WILLIAM WKNEUPPER CHRISTIAN DNOORMANN SASCHA NPATRASCU RENATE P
    • FAN WILLIAM WKNEUPPER CHRISTIAN DNOORMANN SASCHA NPATRASCU RENATE P
    • C07D301/26
    • C07D301/26B01D3/009Y02P20/127
    • A process for producing epoxides, the process including: (a) feeding at least one aqueous alkali and at least one halohydrin to a reactive distillation column, wherein the reactive distillation column includes a feed zone, a top zone disposed above the feed zone, and a bottom zone disposed below the feed zone; (b) concurrently in the reactive distillation column: (i) reacting at least a portion of the halohydrin with the alkali to form an epoxide; and (ii) stripping water and the epoxide from a basic aqueous residue; (c) recovering the water and the epoxide from the reactive distillation column as an overheads fraction; (d) condensing and phase separating the overheads fraction to form an organic overheads fraction including the epoxide and an aqueous overheads fraction including water; and (e) maintaining a liquid holdup per plate in the feed zone at a residence time of 10 seconds or less.
    • 一种制备环氧化物的方法,该方法包括:(a)将至少一种碱金属和至少一种卤代醇进料到反应性蒸馏塔中,其中反应蒸馏塔包括进料区,设置在进料区上方的顶部区,以及 位于进料区下方的底部区域; (b)在反应蒸馏塔中同时进行:(i)使至少一部分卤代醇与碱反应形成环氧化物; 和(ii)从碱性含水残余物中除去水和环氧化物; (c)从反应蒸馏塔中回收水和环氧化物作为塔顶馏分; (d)冷凝和相分离塔顶馏分以形成包括环氧化物和包含水的含水塔顶馏分的有机塔顶馏分; 和(e)在10秒或更短的停留时间内在进料区中保持每个板的液体滞留量。