利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.023 秒)

    Preparation of phthalic anhydride by gas phase oxidation of o-xylene
    1.
    发明授权
    Preparation of phthalic anhydride by gas phase oxidation of o-xylene 有权
    通过邻二甲苯的气相氧化制备邻苯二甲酸酐

    公开(公告)号：US08153825B2

    公开(公告)日：2012-04-10

    申请号：US12301352

    申请日：2007-05-18

    申请人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

    发明人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

    IPC分类号： C07D307/89

    CPC分类号： C07D307/89 ,  C07C51/265 ,  C07C63/16

    摘要： A process is described for preparing phthalic anhydride by catalytic gas phase oxidation of o-xylene, in, in a main reactor, a gaseous mixture of o-xylene and an oxygenous gas is passed through at least two reaction zones whose temperature can be controlled independently, and converted to a gaseous intermediate reaction product which comprises unconverted o-xylene, phthalic anhydride underoxidation products and phthalic anhydride, and the intermediate reaction product is introduced into a postreactor, wherein the temperature of the reaction zones in the main reactor is regulated in such a way that the concentration of unconverted o-xylene in the intermediate reaction product is at least 0.5% by weight. The process allows an increase in the overall yield of phthalic anhydride without or without significant deterioration in the product quality.

    摘要翻译： 描述了通过邻二甲苯的催化气相氧化制备邻苯二甲酸酐的方法，在主反应器中，邻二甲苯和氧气的气态混合物通过至少两个温度可独立控制的反应区 并转化为包含未转化的邻二甲苯，邻苯二甲酸酐未氧化产物和邻苯二甲酸酐的气态中间反应产物，将中间反应产物引入后反应器中，其中主反应器中的反应区的温度如此调节 在中间反应产物中未转化的邻二甲苯的浓度为至少0.5重量％的方式。 该方法允许邻苯二甲酸酐的总产率提高，而不会产生质量的显着劣化。

    Preparation of phthalic anhydride by gas phase oxidation of O-xylene in a main reactor and postreactor
    2.
    发明授权
    Preparation of phthalic anhydride by gas phase oxidation of O-xylene in a main reactor and postreactor 有权
    在主反应器和后反应器中通过气相氧化邻二甲苯制备邻苯二甲酸酐

    公开(公告)号：US08106220B2

    公开(公告)日：2012-01-31

    申请号：US12301370

    申请日：2007-05-18

    申请人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

    发明人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

    IPC分类号： C07D307/89

    CPC分类号： C07D307/89 ,  C07C51/265 ,  C07C63/16

    摘要： A process is described for preparing phthalic anhydride by catalytic gas phase oxidation of o-xylene, in which a gaseous mixture of o-xylene and an oxygenous gas is converted in a main reactor to a gaseous intermediate reaction product which comprises unconverted o-xylene, phthalic anhydride underoxidation products and phthalic anhydride, the heat of reaction which arises in the main reactor being removed at least partly by indirect cooling with a heat carrier medium, and the intermediate reaction product being introduced into a postreactor. The concentration of unconverted o-xylene in the intermediate reaction product is at least 1% by weight, and the sum of the concentrations of phthalic anhydride underoxidation products in the intermediate reaction product is at least 0.5% by weight. The process allows an increase in the overall yield of phthalic anhydride without or without significant deterioration in the product quality.

    摘要翻译： 描述了通过邻二甲苯的催化气相氧化制备邻苯二甲酸酐的方法，其中邻二甲苯和氧气的气体混合物在主反应器中转化为包含未转化的邻二甲苯的气态中间体反应产物， 邻苯二甲酸酐脱氧产物和邻苯二甲酸酐，至少部分通过用载热介质间接冷却除去主反应器中产生的反应热，并将中间反应产物引入后反应器中。 中间反应产物中未转化的邻二甲苯的浓度为至少1重量％，中间反应产物中邻苯二甲酸酐未氧化产物的浓度之和为至少0.5重量％。 该方法允许邻苯二甲酸酐的总产率提高，而不会产生质量的显着劣化。

    PREPARATION OF PHTHALIC ANHYDRIDE BY GAS PHASE OXIDATION OF O-XYLENE
    3.
    发明申请
    PREPARATION OF PHTHALIC ANHYDRIDE BY GAS PHASE OXIDATION OF O-XYLENE 有权
    气相氧化制备邻苯二甲酸二异氰酸酯

    公开(公告)号：US20090198073A1

    公开(公告)日：2009-08-06

    申请号：US12301352

    申请日：2007-05-18

    申请人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

    发明人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

    IPC分类号： C07D317/46

    CPC分类号： C07D307/89 ,  C07C51/265 ,  C07C63/16

    摘要： A process is described for preparing phthalic anhydride by catalytic gas phase oxidation of o-xylene. In, in a main reactor, a gaseous mixture of o-xylene and an oxygenous gas is passed through at least two reaction zones whose temperature can be controlled independently, and converted to a gaseous intermediate reaction product which comprises unconverted o-xylene, phthalic anhydride underoxidation products and phthalic anhydride, and the intermediate reaction product is introduced into a postreactor, wherein the temperature of the reaction zones in the main reactor is regulated in such a way that the concentration of unconverted o-xylene in the intermediate reaction product is at least 0.5% by weight. The process allows an increase in the overall yield of phthalic anhydride without or without significant deterioration in the product quality.

    摘要翻译： 描述了通过邻二甲苯的催化气相氧化制备邻苯二甲酸酐的方法。 在主反应器中，邻二甲苯和氧气的气态混合物通过至少两个反应区，其温度可独立控制，并转化成气态中间反应产物，其包含未转化的邻二甲苯，邻苯二甲酸酐 未反应产物和邻苯二甲酸酐，并将中间反应产物引入后反应器中，其中主反应器中反应区的温度调节为使中间反应产物中未转化的邻二甲苯的浓度至少为 0.5重量％。 该方法允许邻苯二甲酸酐的总产率提高，而不会产生质量的显着劣化。

    METHOD FOR STARTING A GAS PHASE OXIDATION REACTOR THAT CONTAINS A CATALYTICALLY ACTIVE SILVER-VANADIUM OXIDE BRONZE
    4.
    发明申请
    METHOD FOR STARTING A GAS PHASE OXIDATION REACTOR THAT CONTAINS A CATALYTICALLY ACTIVE SILVER-VANADIUM OXIDE BRONZE 审中-公开
    启动含有催化活性银 - 氧化钒的气相氧化反应器的方法

    公开(公告)号：US20110028740A1

    公开(公告)日：2011-02-03

    申请号：US12936648

    申请日：2009-04-07

    申请人： Cornelia Dobner ,  Ulf Dietrich ,  Thomas Mackewitz ,  Sebastian Storck ,  Hagen Wilmer ,  Frank Rosowski ,  Andreas Tenten

    发明人： Cornelia Dobner ,  Ulf Dietrich ,  Thomas Mackewitz ,  Sebastian Storck ,  Hagen Wilmer ,  Frank Rosowski ,  Andreas Tenten

    IPC分类号： C07D307/89 ,  C07D307/36 ,  C07C51/347 ,  C07C63/00 ,  C07C63/04

    CPC分类号： C07C51/265 ,  C07C63/16

    摘要： What is described is a method for starting a gas phase oxidation reactor that contains a bed of a first catalyst whose active material comprises a catalytically active silver-vanadium oxide bronze, and at least one bed of a second catalyst whose catalytically active material comprises vanadium pentoxide and titanium dioxide, and whose temperature is controllable by means of a heat transfer medium. In the operating state, a gas stream which comprises a loading cop of a hydrocarbon and molecular oxygen is passed through the reactor over the bed of the first and second catalyst at a temperature Top of the heat transfer medium. For the startup, a) a gas stream is passed through the reactor with a starting loading c0 which is less than cop, and at a starting temperature T0 of the heat transfer medium which is less than Top, and b) the temperature of the heat transfer medium is brought to Top and the loading of the gas stream to cop. The process combines a short startup time without exceedance of emissions or quality requirements, long catalyst lifetime, high yield and low formation of by-products.

    摘要翻译： 描述的是一种起始气相氧化反应器的方法，该反应器含有一种第一催化剂床，其活性物质包含催化活性的银 - 钒氧化物青铜，以及至少一个第二催化剂床，其催化活性物质包含五氧化二钒 和二氧化钛，其温度可通过传热介质控制。 在操作状态下，在传热介质的温度Top下，将包含烃和分子氧的负载管的气流在第一和第二催化剂的床上通过反应器。 对于启动，a）气流通过反应器，起动负载c0小于保护时间，并且传热介质的起始温度T0小于Top，b）热量的温度 转移介质被带到顶部并将气流装载到管路中。 该过程结合了启动时间短，而不会超过排放或质量要求，长催化剂寿命，高产率和低副产物形成。

    PREPARATION OF PHTHALIC ANHYDRIDE BY GAS PHASE OXIDATION OF O-XYLENE IN A MAIN REACTOR AND POSTREACTOR
    5.
    发明申请
    PREPARATION OF PHTHALIC ANHYDRIDE BY GAS PHASE OXIDATION OF O-XYLENE IN A MAIN REACTOR AND POSTREACTOR 有权
    通过气相氧化在主反应器和载体中制备邻苯二甲酸二异氰酸酯

    公开(公告)号：US20090156835A1

    公开(公告)日：2009-06-18

    申请号：US12301370

    申请日：2007-05-18

    申请人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

    发明人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

    IPC分类号： C07D307/89

    CPC分类号： C07D307/89 ,  C07C51/265 ,  C07C63/16

    摘要： A process is described for preparing phthalic anhydride by catalytic gas phase oxidation of o-xylene, in which a gaseous mixture of o-xylene and an oxygenous gas is converted in a main reactor to a gaseous intermediate reaction product which comprises unconverted o-xylene, phthalic anhydride underoxidation products and phthalic anhydride, the heat of reaction which arises in the main reactor being removed at least partly by indirect cooling with a heat carrier medium, and the intermediate reaction product being introduced into a postreactor. The concentration of unconverted o-xylene in the intermediate reaction product is at least 1% by weight, and the sum of the concentrations of phthalic anhydride underoxidation products in the intermediate reaction product is at least 0.5% by weight. The process allows an increase in the overall yield of phthalic anhydride without or without significant deterioration in the product quality.

    摘要翻译： 描述了通过邻二甲苯的催化气相氧化制备邻苯二甲酸酐的方法，其中邻二甲苯和氧气的气体混合物在主反应器中转化为包含未转化的邻二甲苯的气态中间体反应产物， 邻苯二甲酸酐脱氧产物和邻苯二甲酸酐，至少部分通过用载热介质间接冷却除去主反应器中产生的反应热，并将中间反应产物引入后反应器中。 中间反应产物中未转化的邻二甲苯的浓度为至少1重量％，中间反应产物中邻苯二甲酸酐未氧化产物的浓度之和为至少0.5重量％。 该方法允许邻苯二甲酸酐的总产率提高，而不会产生质量的显着劣化。

    Synthesis of oligoarylamines, and uses and reagents related thereto
    6.
    发明授权
    Synthesis of oligoarylamines, and uses and reagents related thereto 失效
    低聚芳基胺的合成及其用途和试剂

    公开(公告)号：US06235871B1

    公开(公告)日：2001-05-22

    申请号：US09203726

    申请日：1998-12-02

    申请人： Robert A. Singer ,  Joseph P. Sadighi ,  Stephen L. Buchwald ,  Thomas Mackewitz

    发明人： Robert A. Singer ,  Joseph P. Sadighi ,  Stephen L. Buchwald ,  Thomas Mackewitz

    IPC分类号： C08G7300

    CPC分类号： C07C271/28 ,  C07B43/04 ,  C07F7/081 ,  C08G73/00 ,  C08G73/0266 ,  H01B1/128 ,  Y02P20/55

    摘要： The transition metal-catalyzed amination of aryl halides, in conjunction with an orthogonal protective group scheme, forms the basis of two routes to oligoaniline precursors. The oligoaniline precursors are soluble in a variety of common organic solvents, and are easily converted to the deprotected oligoanilines. The method allows the preparation of oligoanilines of even or odd chain lengths, and the incorporation of a variety of functional groups into the oligomers. Polyanilines of low polydispersity can also be prepared by this method.

    摘要翻译： 芳基卤化物的过渡金属催化胺化与正交保护基团方案结合形成了两条向苯胺前体的途径的基础。 低聚苯胺前体可溶于多种普通的有机溶剂，易于转化为去保护的低聚苯胺。 该方法允许制备偶数或奇数链长度的寡聚苯胺，并将各种官能团加入到低聚物中。 低分散性聚苯胺也可以通过这种方法制备。

    Method for the continuous production of aldehydes
    8.
    发明申请
    Method for the continuous production of aldehydes 失效
    连续生产醛的方法

    公开(公告)号：US20070004939A1

    公开(公告)日：2007-01-04

    申请号：US10575843

    申请日：2004-10-14

    申请人： Martin Volland ,  Thomas Mackewitz ,  Wolfgang Ahlers ,  Ansgar Schafer ,  Wolfgang Richter ,  Rocco Paciello

    发明人： Martin Volland ,  Thomas Mackewitz ,  Wolfgang Ahlers ,  Ansgar Schafer ,  Wolfgang Richter ,  Rocco Paciello

    IPC分类号： C07C45/50

    CPC分类号： B01J31/186 ,  B01J2231/321 ,  B01J2531/822 ,  C07C45/50 ,  C07C47/02

    摘要： The invention relates to a method for the continuous production of aldehydes comprising between 5 and 21 carbon atoms, by the isomerising hydroformylation in a homogenous phase of olefin compositions comprising between 4 and 20 carbon atoms and containing α-olefins and olefins with internal double bonds, by means of a synthesis gas, in the presence of a homogeneous rhodium catalyst that is complexed with an organophosphorus ligand containing oxygen atoms and/or nitrogen atoms and a free ligand. Said production is carried out at high temperature and high pressure in a multi-stage reaction system consisting of at least two reaction zones. According to said method, the olefin composition is first reacted in a first reaction zone or a group of several first reaction zones at a total pressure of between 10 and 40 bar, using a synthesis gas with a CO/H2 molar ratio of between 4:1 and 1:2 until a 40 to 95% conversion of the α-olefins is obtained. The hydroformylation product from the first reaction zone or group of several first reaction zones is then reacted in a subsequent reaction zone or group of several reaction zones at a total pressure of between 5 and 30 bar, using a synthesis gas with a CO/H2 molar ratio of between 1:4 and 1:1000. The total pressure in the subsequent reaction zone or zones is respectively 1 to (G1−Gf) bar lower than that of the preceding reaction zone, whereby G1 represents the total pressure in the respective preceding reaction zone and Gf represents the total pressure in the respective reaction zone that succeeds said first reaction zone or zones, with the proviso that the difference between G1 and Gf is greater than 1 bar and the partial CO pressure in the subsequent reaction zone or zones is respectively lower than that of the preceding reaction zone.

    摘要翻译： 本发明涉及通过在包含4至20个碳原子并含有具有内部双键的α-烯烃和烯烃的烯烃组合物的均质相中的异构化加氢甲酰化来连续生产含有5至21个碳原子的醛的方法， 在与含有氧原子和/或氮原子的有机磷配体和游离配体络合的均匀的铑催化剂的存在下，通过合成气。 所述生产在由至少两个反应区组成的多级反应体系中在高温高压下进行。 根据所述方法，首先使用具有CO / H 2 O 2的合成气在第一反应区或一组几个第一反应区中以10至40巴的总压力反应烯烃组合物， 的摩尔比在4:1和1:2之间，直到获得40-95％的α-烯烃转化率。 然后使用具有CO / H 2的合成气使来自第一反应区或几个第一反应区的组的加氢甲酰化产物在随后的反应区或几个反应区的组中以5至30巴的总压力反应， 1摩尔比为1:4-1:1000。 后续反应区域或区域中的总压力分别比前述反应区域低1〜（G1-Gf）巴，由此G1表示前述反应区域中的总压力，Gf表示相应的 所述第一反应区或区域成功的反应区，条件是G 1和G f之间的差大于1巴，并且后续反应区或区中的部分CO压力分别低于前述反应区。