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    Process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride
    53.
    发明授权
    Process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride 有权
    控制气相氧化反应器制备邻苯二甲酸酐的方法

    公开(公告)号：US08901320B2

    公开(公告)日：2014-12-02

    申请号：US13085537

    申请日：2011-04-13

    申请人： Stefan Altwasser ,  Jürgen Zühlke ,  Hao Chen ,  Cornelia Katharina Dobner ,  Frank Rosowski

    发明人： Stefan Altwasser ,  Jürgen Zühlke ,  Hao Chen ,  Cornelia Katharina Dobner ,  Frank Rosowski

    IPC分类号： C07D307/89

    CPC分类号： C07D307/89

    摘要： In a process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride, by passing a gas stream which comprises an aromatic hydrocarbon and molecular oxygen through a multitude of reaction tubes arranged in the gas phase oxidation reactor, each of which comprises a bed of at least one catalyst and the temperature of which can be controlled by means of a heat transfer medium, at least one control parameter is measured and correcting interventions for control of the control parameter are determined, the at least one control parameter comprising the phthalic anhydride yield and the correcting parameter used being the temperature of the heat carrier medium. Over at least 90% of the lifetime of the catalyst, the change in the correcting parameter is limited to a maximum of 0.5 K within a period of 30 days. In this way, the cumulated phthalic anhydride yield over the lifetime of the catalyst is maximized.

    摘要翻译： 在控制用于制备邻苯二甲酸酐的气相氧化反应器的方法中，通过将包含芳族烃和分子氧的气流通过布置在气相氧化反应器中的多个反应管通过，每个反应管包括一个床 至少一种催化剂，其温度可以通过传热介质控制，测量至少一个控制参数，并且确定用于控制控制参数的校正干预，所述至少一个控制参数包括邻苯二甲酸酐产率 并且所使用的校正参数是热载体介质的温度。 在催化剂寿命的至少90％之内，校正参数的变化在30天的时间内被限制为最大0.5K。 以这种方式，在催化剂寿命期间累积的邻苯二甲酸酐产率最大化。

    Use of structured catalyst beds for preparing ethylene oxide
    55.
    发明授权
    Use of structured catalyst beds for preparing ethylene oxide 有权
    使用结构化催化剂床制备环氧乙烷

    公开(公告)号：US08580982B2

    公开(公告)日：2013-11-12

    申请号：US13376879

    申请日：2010-06-09

    申请人： Georg Seeber ,  Torsten Mäurer ,  Gerhard Theis ,  Dieter Köffer ,  Frank Rosowski

    发明人： Georg Seeber ,  Torsten Mäurer ,  Gerhard Theis ,  Dieter Köffer ,  Frank Rosowski

    IPC分类号： C07D301/03

    CPC分类号： C07D301/10

    摘要： The present invention relates to a process for preparing ethylene oxide by reaction of ethylene with oxygen in the presence of at least one silver-comprising catalyst, wherein the reaction takes place in a reactor which has a catalyst packed bed having at least two zones (i) and (ii) and the silver content of the catalyst in zone (i) is lower than the silver content of the catalyst in zone (ii). The catalyst packed bed preferably has a further zone (a) with which the reaction mixture comes into contact before the zones (i) and (ii). According to the invention, the silver content of the catalyst in the zone (a) is higher than the silver content of the catalyst in zone (i).

    摘要翻译： 本发明涉及通过乙烯与氧在至少一种含银催化剂存在下反应来制备环氧乙烷的方法，其中该反应在具有至少两个区域的催化剂填充床（i ）和（ii），并且（i）区域中的催化剂的银含量低于区域（ii）中的催化剂的银含量。 催化剂填充床优选具有另外的区域（a），反应混合物在区域（i）和（ii）之前与其接触。 根据本发明，区域（a）中催化剂的银含量高于区域（i）中催化剂的银含量。

    Method for starting a gas-phase oxidation reactor
    57.
    发明授权
    Method for starting a gas-phase oxidation reactor 有权
    启动气相氧化反应器的方法

    公开(公告)号：US08492566B2

    公开(公告)日：2013-07-23

    申请号：US12936807

    申请日：2009-04-07

    申请人： Hagen Wilmer ,  Jürgen Zühlke ,  Thomas Lautensack ,  Hans-Martin Allmann ,  Frank Rosowski ,  Cornelia Katharina Dobner

    发明人： Hagen Wilmer ,  Jürgen Zühlke ,  Thomas Lautensack ,  Hans-Martin Allmann ,  Frank Rosowski ,  Cornelia Katharina Dobner

    IPC分类号： C07D307/89

    CPC分类号： C07C51/265 ,  C07D307/89

    摘要： What is described is a process for starting up a gas phase oxidation reactor for oxidation of o-xylene to phthalic anhydride, said reactor comprising at least one catalyst layer and being temperature-controllable by means of a heat carrier medium, wherein a) the catalyst layer is interrupted by a moderator layer which is less catalytically active than the catalyst layer or is catalytically inactive, b) a gas stream is passed through the reactor with an initial loading of o-xylene and at an initial temperature of the heat transfer medium, c) the loading of the gas stream is increased to a target loading and, in parallel, the temperature of the heat transfer medium is lowered to an operating temperature. The introduction of the moderator layer allows the loading to be increased more rapidly and the startup time to be shortened.

    摘要翻译： 描述的是用于启动用于将邻二甲苯氧化成邻苯二甲酸酐的气相氧化反应器的方法，所述反应器包括至少一个催化剂层，并且可通过热载体介质温度控制，其中a）催化剂 层被催化剂层催化活性较低或催化无活性的中间体层中断，b）气流以邻二甲苯的初始负荷和传热介质的初始温度通过反应器， c）将气流的负载增加到目标负载，并且并联地将传热介质的温度降低到工作温度。 调节器层的引入允许加载更快速并且启动时间被缩短。

    FORMULATION AND USE THEREOF
    59.
    发明申请
    FORMULATION AND USE THEREOF 审中-公开
    配方及其用途

    公开(公告)号：US20120308840A1

    公开(公告)日：2012-12-06

    申请号：US13518768

    申请日：2010-12-13

    申请人： Michael Maier ,  Jörg Habicht ,  Alexander Kraus ,  Andrey Karpov ,  Frank Rosowski ,  Frank Müller

    发明人： Michael Maier ,  Jörg Habicht ,  Alexander Kraus ,  Andrey Karpov ,  Frank Rosowski ,  Frank Müller

    IPC分类号： A01N59/20 ,  B32B21/00 ,  A01P3/00 ,  A01N25/04 ,  A01P7/04 ,  A01N59/26

    CPC分类号： A01N59/20 ,  A01N25/04 ,  A01N25/30 ,  A01N43/653 ,  B27K3/15 ,  C08K3/30 ,  C08L61/28 ,  C08L61/34 ,  C08L97/02 ,  Y10T428/662

    摘要： A formulation is claimed, which contains at least one protective substance that is active with respect to cellulose-containing materials, such as wood-containing building materials in the form of solid wood or wood-based materials, and at least one specific compound with dispersing properties. The dispersants are branched comb-shaped polymers with polyether side chains, naphthalene-sulfonate-formaldehyde condensation products, melamine-sulfonate-formaldehyde condensation products and phosphatized polycondensation products. The formulations according to the invention are suitable in particular as plant protection agents and wood preservatives and are preferably used in the form of suspensions for pressure treatment of the respective building materials.

    摘要翻译： 要求保护的物质包含至少一种相对于含纤维素的材料具有活性的保护性物质，例如实木或木质材料形式的含木材建筑材料，以及至少一种具有分散性的特定化合物 属性。 分散剂是具有聚醚侧链的支链梳状聚合物，萘磺酸盐 - 甲醛缩合产物，三聚氰胺 - 磺酸 - 甲醛缩合产物和磷酸化缩聚产物。 根据本发明的制剂特别适用于植物保护剂和木材防腐剂，并且优选以用于各种建筑材料的压力处理的悬浮液的形式使用。