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    • 1. 发明授权
    • Rectificative separation of fluids comprising (meth) acrylic monomers
    • 包含(甲基)丙烯酸单体的流体的精馏分离
    • US07351310B2
    • 2008-04-01
    • US10658257
    • 2003-09-10
    • Joachim ThielAlbrecht DamsJuergen Schroeder
    • Joachim ThielAlbrecht DamsJuergen Schroeder
    • B01D3/34B01D5/00C07C51/42
    • C07C51/44B01D3/14B01D5/0063C07C45/81C07C45/82C07C51/43C07C67/54Y10S203/22C07C47/22C07C57/04C07C69/54
    • A process for rectificatively separating fluids including (meth)acrylic monomers in a rectification column by directly cooling the vapor including (meth)acrylic monomers rising to the top of the rectification column to form top condensate including (meth)acrylic monomers, the condensation space at the top of the column being separated from the region of the rectification column containing the separating internals only by at least one chimney tray from which the top condensate formed is removed from the rectification column, which includes effecting the direct cooling of the vapor in the condensation space in at least two spray zones which are spatially successive and are flowed through by vapor by spraying supercooled top condensate including added polymerization inhibitor, and the temperature of the sprayed supercooled top condensate becoming lower from spray zone to spray zone in the flown direction of the vapor.
    • 通过将上升到精馏塔顶部的(甲基)丙烯酸单体直接冷却的蒸汽直接冷却,形成精馏塔中的(甲基)丙烯酸单体,形成包含(甲基)丙烯酸单体的顶部缩合物, 柱的顶部仅由至少一个烟囱式塔板从含有分离内部件的精馏塔的区域分离出,从该澄清塔中形成的顶部冷凝物从精馏塔从精馏塔排出,其中包括直接冷却冷凝物中的蒸气 至少两个喷雾区的空间,其空间连续并通过喷雾通过喷雾过冷顶部冷凝物(包括加入的阻聚剂)而流过,并且喷射的过冷顶部冷凝物的温度从喷射区域向喷雾区域的流动方向变低 汽。