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    • 8. 发明授权
    • Production of phenol using reactive distillation
    • 使用反应蒸馏生产苯酚
    • US06410804B1
    • 2002-06-25
    • US09468465
    • 1999-12-21
    • Doron LevinJose G. Santiesteban
    • Doron LevinJose G. Santiesteban
    • C07C3708
    • C07C37/08C07C45/53Y02P20/127Y10S203/06C07C49/08C07C39/04
    • A process for producing phenol and acetone from cumene hydroperoxide comprises: i) introducing a cumene hydroperoxide feed into a reactive distillation column comprising at its upper portion a distillation column and at its lower portion a catalyst bed, at a point above said catalyst bed; ii) mixing a diluting portion of acetone with said cumene hydroperoxide to provide a diluted cumene hydroperoxide; iii) directing said diluted cumene hydroperoxide through said catalyst bed under conditions sufficient to effect the exothermic decomposition of said cumene hydroperoxide to a product comprising a heavy fraction comprising phenol and a vaporized light fraction comprising acetone; iv) withdrawing said heavy fraction as bottoms from said column; v) flowing said vaporized light fraction upwards through the catalyst bed and at least a portion of the reactive distillation column; vi) condensing said light fraction to provide at least a portion of said diluting portion of acetone for subsequent mixing with said cumene hydroperoxide feed; vii) optionally withdrawing a portion of said light fraction as overhead from said column; and viii) repeating steps i) through vii). An apparatus for carrying out the process is also provided.
    • 从氢过氧化枯烯生产苯酚和丙酮的方法包括:i)将氢过氧化枯烯进料引入反应性蒸馏塔,反应蒸馏塔在其上部包含蒸馏塔,其下部在催化剂床的上方加入催化剂床; ii 将丙酮的稀释部分与所述异丙基氢过氧化物混合以提供稀释的氢过氧化枯烯; iii)在足以使所述异丙基氢过氧化氢发生放热分解的产物的条件下将所述稀释的氢过氧化枯烯引导通过所述催化剂床,所述产物包含含有苯酚 以及包含丙酮的气化轻馏分; iv)从所述塔中抽出所述重馏分作为塔底物; v)使所述蒸发的轻馏分向上通过催化剂床和至少一部分反应蒸馏塔; vi)将所述轻馏分冷凝至 提供所述丙稀稀释部分的至少一部分用于随后的混合物 g用所述异丙基氢过氧化物进料; vii)任选地将所述轻馏分的一部分从塔中取出; 和viii)重复步骤i)至vii)。 还提供了一种用于执行该过程的装置。