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    Method for producing highly pure monoethylene glycol
    6.
    发明授权
    Method for producing highly pure monoethylene glycol 有权
    高纯度单乙二醇生产方法

    公开(公告)号：US06605192B1

    公开(公告)日：2003-08-12

    申请号：US09787616

    申请日：2001-03-20

    申请人： Gerhard Theis ,  Till Adrian ,  Bernd Bessling ,  Hans Hasse ,  Frans Vansant

    发明人： Gerhard Theis ,  Till Adrian ,  Bernd Bessling ,  Hans Hasse ,  Frans Vansant

    IPC分类号： B01D338

    CPC分类号： C07C29/80 ,  Y10S203/20 ,  C07C31/202

    摘要： A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.

    摘要翻译： 一种从水解中回收高纯度单乙二醇的方法，通过压力脱水，优选在电池中进行蒸馏产物，真空脱水和随后的纯化蒸馏，其中在真空脱水期间，取出含有单乙二醇的水流 浓度低于1重量％，优选低于0.1重量％，中等锅炉和低锅炉。 取出的水流，任选地在进一步后处理之后，从体系中除去。

    Pure ethylene oxide distillation process
    7.
    发明授权
    Pure ethylene oxide distillation process 有权
    纯环氧乙烷蒸馏工艺

    公开(公告)号：US06833057B1

    公开(公告)日：2004-12-21

    申请号：US09341921

    申请日：1999-07-21

    申请人： Bernd Bessling ,  Hans Hasse ,  Jürgen Plückhan ,  Thomas Mayer ,  Heinz Auer

    发明人： Bernd Bessling ,  Hans Hasse ,  Jürgen Plückhan ,  Thomas Mayer ,  Heinz Auer

    IPC分类号： B01D338

    CPC分类号： C07D301/32 ,  Y10S203/20

    摘要： In a process for purification of ethylene oxide by distillation an aqueous mixture comprising ethylene oxide, formaldehyde and at least 5% by weight of water is introduced via a feed into a distillation apparatus comprising at least one distillation column, the mixture being introduced at a height above the bottom of at least 8 theoretical stages, the ethylene oxide is taken off at the top and in the bottom phase a mixture is obtained which contains less than 5% by weight of ethylene oxide.

    摘要翻译： 在通过蒸馏纯化环氧乙烷的方法中，将包含环氧乙烷，甲醛和至少5重量％的水的含水混合物通过进料引入到包含至少一个蒸馏塔的蒸馏装置中，混合物在高度 在至少8个理论阶段的底部之上，环氧乙烷在顶部被除去，在底部，获得含有小于5重量％的环氧乙烷的混合物。

    Method for producing highly pure monoethylene glycol
    8.
    发明授权
    Method for producing highly pure monoethylene glycol 有权
    高纯度单乙二醇生产方法

    公开(公告)号：US06514388B1

    公开(公告)日：2003-02-04

    申请号：US09744433

    申请日：2001-01-24

    申请人： Till Adrian ,  Bernd Bessling ,  Hans Hasse ,  Frans Vansant ,  Gerhard Theis

    发明人： Till Adrian ,  Bernd Bessling ,  Hans Hasse ,  Frans Vansant ,  Gerhard Theis

    IPC分类号： B01D300

    CPC分类号： C07C29/80 ,  C07C31/202

    摘要： A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis product of ethylene oxide by pressure dewatering, vacuum dewatering and subsequent purifying distillation, which includes the pressure dewatering columns or at least the first pressure dewatering column of the battery (2, 3, 4) having a stripping section with at least one separating stage, preferably with from 2 to 10 separating stages, particularly preferably with from 3 to 6 stages, and a portion of the overhead stream of the pressure dewatering column(s) (2, 3, 4) having a stripping section being removed from the system.

    摘要翻译： 一种通过压力脱水，真空脱水和随后的纯化蒸馏从环氧乙烷的水解产物蒸馏回收高纯度单乙二醇的方法，其包括压力脱水塔或至少电池的第一压力脱水塔（2,3） ，4）具有至少一个分离阶段的汽提部分，优选具有2至10个分离阶段，特别优选3至6个阶段，以及部分压力脱水塔（2， 3，4）具有从系统中去除的剥离部分。

    Continuous preparation of monoethanolamine, diethanolamine and triethanolamine
    10.
    发明授权
    Continuous preparation of monoethanolamine, diethanolamine and triethanolamine 失效
    连续制备单乙醇胺，二乙醇胺和三乙醇胺

    公开(公告)号：US06696610B2

    公开(公告)日：2004-02-24

    申请号：US10227831

    申请日：2002-08-27

    申请人： Werner Peschel ,  Axel Hildebrandt ,  Bernd Bessling

    发明人： Werner Peschel ,  Axel Hildebrandt ,  Bernd Bessling

    IPC分类号： C07C21304

    CPC分类号： C07C213/04 ,  Y02P20/127 ,  C07C215/08 ,  C07C215/12

    摘要： A continuous process for the preparation of monoethanolamine, diethanolamine and triethanolamine by reacting ammonia and ethylene oxide in liquid phase in the presence of water as catalyst in a pressure column is proposed, where, as a result of the heat of the reaction, some of the ammonia evaporates, condenses at the head of the column and is again charged to the column, the reaction mixture at the bottom end of the pressure column is drawn off and then separated, the pressure column is constructed as a reactive distillation column (I) with evaporator at the bottom (S) and where, by means of inputting energy via the evaporator at the bottom (S), the weight ratio of monoethanolamine to diethanolamine to triethanolamine is controlled and, via the ratio of ammonia to ethylene oxide in the feed to the reactive distillation column (I), the ammonia proportion in the bottom product from the reactive distillation column (I) is controlled.

    摘要翻译： 提出了一种连续的制备单乙醇胺，二乙醇胺和三乙醇胺的方法，其中在水作为催化剂存在下，在压力塔中使氨和环氧乙烷在液相中反应，其中作为反应热的结果， 氨蒸发，在塔头冷凝，再次加入塔中，抽出压力塔底端的反应混合物，然后分离，将压力塔构建为反应蒸馏塔（I），与 蒸发器在底部（S），并且其中通过在底部（S）处的蒸发器输入能量，控制单乙醇胺与二乙醇胺与三乙醇胺的重量比，并且通过进料中氨与环氧乙烷的比例 反应蒸馏塔（I），来自反应蒸馏塔（I）的塔底产物中的氨比例被控制。