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    USE OF LIQUID HYDROGEN CHLORIDE AS REFRIGERANT IN PROCESSES FOR PREPARING CHLORINE
    1.
    发明申请
    USE OF LIQUID HYDROGEN CHLORIDE AS REFRIGERANT IN PROCESSES FOR PREPARING CHLORINE 审中-公开
    氯化氢作为制冷剂在制备氯化物的工艺中的应用

    公开(公告)号：US20120213693A1

    公开(公告)日：2012-08-23

    申请号：US13371910

    申请日：2012-02-13

    申请人： Hans-Jürgen PALLASCH ,  Heiner SCHELLING ,  Peter VAN DEN ABEEL ,  Till EINIG

    发明人： Hans-Jürgen PALLASCH ,  Heiner SCHELLING ,  Peter VAN DEN ABEEL ,  Till EINIG

    IPC分类号： C01B7/04

    CPC分类号： C01B7/04

    摘要： This invention relates to a process for preparing chlorine from HCl and a method of using liquid HCl to cool and optionally liquefy chlorine in the process. The process involves introducing at least one HCl-containing stream and an oxygen-containing stream into an oxidation zone and catalytically oxidizing the HCl to chlorine, contacting the chlorine with aqueous HCl with partial separation of water and HCl to yield a gas stream, drying the gas stream to yield an essentially water-free gas stream, which is compressed and cooled to give an at least partially liquefied stream, and separating the liquefied stream into a gas stream and a liquid stream which is separated into a chlorine stream, such that cooling and partial liquefaction of the gas stream is effected by indirect heat exchange with a liquid HCl stream, resulting in some of the liquid HCl stream vaporizing to form a gaseous HCl stream.

    摘要翻译： 本发明涉及一种从HCl制备氯的方法，以及使用液体HCl冷却和任选地在该过程中液化氯的方法。 该方法包括将至少一种含HCl流和含氧物流引入氧化区并将HCl催化氧化成氯，将氯与HCl水溶液接触，部分分离出水和HCl，产生气流，干燥 气流以产生基本上无水的气流，其被压缩和冷却以产生至少部分液化的流，并将液化物流分离成气流和液态物流，其被分离成氯气流，使得冷却 并且通过与液体HCl流的间接热交换来实现气流的部分液化，导致一些液体HCl流汽化以形成气态HCl流。

    PROCESS FOR PREPARING METHYLENEDI(PHENYL ISOCYANATE)
    2.
    发明申请
    PROCESS FOR PREPARING METHYLENEDI(PHENYL ISOCYANATE) 有权
    制备亚甲基（异氰酸苯酯）的方法

    公开(公告)号：US20120123151A1

    公开(公告)日：2012-05-17

    申请号：US13299039

    申请日：2011-11-17

    申请人： Michael BOCK ,  Kai THIELE ,  Heiner SCHELLING

    发明人： Michael BOCK ,  Kai THIELE ,  Heiner SCHELLING

    IPC分类号： C07C263/10

    CPC分类号： C07C263/10 ,  C07C263/20 ,  C07C265/14

    摘要： The invention relates to a process for preparing methylenedi(phenyl isocyanate), which comprises (a) the phosgenation of two-ring and/or multiring methylenedi(phenylamine), (b) the fractionation of the crude methylenedi(phenyl isocyanate) obtained to give two-ring and multiring isomers, (c) the purification and/or fractionation of the resulting mixture of two-ring isomers of methylenedi(phenyl isocyanate) and (d) the storage of the mixtures obtained in step (c) or in step (b), wherein part of the stored mixtures is reused by means of recirculation in at least one of steps (b) or (c).

    摘要翻译： 本发明涉及一种制备亚甲基二（苯基异氰酸酯）的方法，其包括（a）双环和/或多种亚甲基二苯胺（苯胺）的光气化，（b）将得到的粗亚甲基二（苯基异氰酸酯） （c）纯化和/或分馏得到的亚甲基二异氰酸酯（苯基异氰酸酯）的双环异构体的混合物和（d）将步骤（c）中获得的混合物或步骤（ b），其中部分储存的混合物通过在步骤（b）或（c）中的至少一个中的循环再利用。