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    VERFAHREN ZUR HERSTELLUNG VON CHLOR
    6.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CHLOR 有权

    公开(公告)号：EP2414283A1

    公开(公告)日：2012-02-08

    申请号：EP10710046.3

    申请日：2010-03-25

    Applicant: BASF SE

    Inventor： KARCHES, Martin ,  BACHMANN, Kati ,  SESING, Martin ,  RUMPF, Bernd ,  ODENWALD, Oliver ,  SEIDEMANN, Lothar

    IPC: C01B7/04

    CPC classification number: C01B7/04

    Abstract: A process is proposed for preparing chlorine by oxidizing hydrogen chloride in the presence of a heterogeneous particulate catalyst by the Deacon process in a fluidized bed reactor (1), wherein the heat of reaction is removed by evaporative cooling with water which circulates in the tubes (2) of a shell and tube heat exchanger, wherein the water is supplied from a steam drum (4) via a feed line (5) to the tubes (2) of the shell and tube heat exchanger at one end thereof, it heats up in the tubes (2) by absorbing the heat of reaction and evaporates partly to obtain a water/steam mixture which is passed back into the steam drum (4) via a return line (6) at the other end of the tubes (2) of the shell and tube heat exchanger, which is characterized in that the maximum pressure for which the fluidized bed reactor (1) has to be designed for the event of fracture of a tube (2) of the shell and tube heat exchanger is minimized by introducing a valve (7) into the feed line (5) and into the return line (6), said valve (7), in the event of a pressure rise owing to the fracture of a tube (2), blocking the feed line (5) and the return line (6), thus preventing water from flowing out of the steam drum (4) into the fluidized bed reactor (1).

    Abstract translation: 提出了一种通过在流化床反应器（1）中通过Deacon法在非均相颗粒催化剂存在下氧化氯化氢来制备氯气的方法，其中反应热通过用在管中循环的水进行蒸发冷却而除去 2）的壳管式热交换器，其中水从蒸汽鼓（4）经由供给管线（5）供给到其一端的壳管式热交换器的管（2），其加热 在管（2）中通过吸收反应热并且部分地蒸发以获得水/蒸汽混合物，所述水/蒸汽混合物经由管（2）的另一端处的返回管线（6）返回到蒸汽鼓（4） 其特征在于，流化床反应器（1）必须设计用于壳管式热交换器的管（2）断裂事件的最大压力最小化为 将阀（7）引入进料管线（5）和进料管中 所述阀（7）在由于管（2）的断裂而导致压力升高的情况下阻塞供给管线（5）和返回管线（6），从而防止水流动 离开蒸汽鼓（4）进入流化床反应器（1）。

    VERFAHREN ZUR WIEDERGEWINNUNG VON RUTHENIUM AUS GEBRAUCHTEN RUTHENIUMOXIDHALTIGEN KATALYSATOREN
    7.
    发明公开
    VERFAHREN ZUR WIEDERGEWINNUNG VON RUTHENIUM AUS GEBRAUCHTEN RUTHENIUMOXIDHALTIGEN KATALYSATOREN 有权
    PROCESS FOR钌的从用于氧化钌催化剂RECOVERY

    公开(公告)号：EP2391740A2

    公开(公告)日：2011-12-07

    申请号：EP09801713.0

    申请日：2009-12-28

    Applicant: BASF SE

    Inventor： HENZE, Guido ,  URTEL, Heiko ,  SESING, Martin ,  KARCHES, Martin

    IPC: C22B11/00

    CPC classification number: C22B7/007 ,  C22B3/10 ,  C22B5/12 ,  C22B7/002 ,  C22B7/009 ,  C22B11/026 ,  C22B11/048 ,  Y02P10/214 ,  Y02P10/234

    Abstract: The invention relates to a method for recovering ruthenium from a spent ruthenium-containing catalyst which contains ruthenium in the form of ruthenium oxide on a support material that is poorly soluble in mineral acid. Said method comprises the following steps: a) the catalyst containing ruthenium oxide is reduced in a gas stream containing hydrogen chloride and an optional inert gas at a temperature ranging from 300 to 500°C; b) the catalyst that has been reduced in step a) and contains metallic ruthenium on the poorly soluble support material is treated with hydrochloric acid in the presence of a gas containing oxygen such that the metallic ruthenium on the support is dissolved in the form of ruthenium(III) chloride and is recovered in the form of aqueous ruthenium(III) chloride solution; c) if necessary, the ruthenium(III) chloride solution obtained in step b) is further processed.

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