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    PROCESS FOR PREPARING ACRYLIC ACID FROM METHANOL AND ACETIC ACID
    2.
    发明申请
    PROCESS FOR PREPARING ACRYLIC ACID FROM METHANOL AND ACETIC ACID 有权
    从甲醇和乙酸制备丙烯酸的方法

    公开(公告)号：US20120071688A1

    公开(公告)日：2012-03-22

    申请号：US13233560

    申请日：2011-09-15

    申请人： Stefanie HERZOG ,  Stefan Altwasser ,  Klaus Joachim Mueller-Engel

    发明人： Stefanie HERZOG ,  Stefan Altwasser ,  Klaus Joachim Mueller-Engel

    IPC分类号： C07C57/04 ,  C07C51/36

    CPC分类号： C07C45/38 ,  B01J23/002 ,  B01J23/881 ,  B01J27/198 ,  B01J35/0006 ,  B01J35/023 ,  B01J37/0009 ,  B01J37/0045 ,  B01J2523/00 ,  C07B2200/05 ,  C07C51/353 ,  C07C51/44 ,  C07C57/04 ,  C07C47/04 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/842

    摘要： A process for preparing acrylic acid from methanol and acetic acid, in which, in a reaction zone A, the methanol is partially oxidized to formaldehyde in a heterogeneously catalyzed gas phase reaction, the product gas mixture A obtained and an acetic acid source are used to obtain a reaction gas input mixture B which comprises acetic acid and formaldehyde and has the acetic acid in excess over the formaldehyde, and the formaldehyde present in reaction gas input mixture B is aldol-condensed to acrylic acid under heterogeneous catalysis in a reaction zone B with acetic acid present in reaction gas input mixture B, and unconverted acetic acid still present alongside the acrylic acid target product in the product gas mixture B obtained is removed therefrom, and the acetic acid removed is recycled into the production of reaction gas input mixture B.

    摘要翻译： 一种从甲醇和乙酸制备丙烯酸的方法，其中在反应区A中甲醇在异质催化气相反应中部分氧化成甲醛，得到的产物气体混合物A和乙酸源用于 得到包含乙酸和甲醛并且乙酸超过甲醛的反应气体输入混合物B，反应气体输入混合物B中存在的甲醛在反应区B内的非均相催化下醛醇缩合成丙烯酸， 存在于反应气体输入混合物B中的乙酸和从得到的产物气体混合物B中仍然存在于丙烯酸目标产物旁边的未转化的乙酸，将除去的乙酸循环到反应气体输入混合物B的生产中。

    Process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride
    4.
    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。

    MALEIC ANHYDRIDE SYNTHESIS CATALYST PRECURSOR AND PROCESS FOR ITS PREPARATION
    7.
    发明申请
    MALEIC ANHYDRIDE SYNTHESIS CATALYST PRECURSOR AND PROCESS FOR ITS PREPARATION 审中-公开
    马来酸酐合成催化剂前体及其制备方法

    公开(公告)号：US20120149919A1

    公开(公告)日：2012-06-14

    申请号：US13391958

    申请日：2010-08-23

    申请人： Stefan Altwasser ,  Cornelia Katharina Dobner ,  Hagen Wilmer ,  Frank Rosowski

    发明人： Stefan Altwasser ,  Cornelia Katharina Dobner ,  Hagen Wilmer ,  Frank Rosowski

    IPC分类号： B01J27/198 ,  C07D307/60 ,  C01B25/37

    CPC分类号： B01J27/198 ,  B01J23/002 ,  B01J35/002 ,  B01J35/023 ,  B01J35/026 ,  B01J37/0009 ,  B01J37/031 ,  B01J37/08 ,  B01J2523/00 ,  C07C51/215 ,  C07C57/145 ,  B01J2523/51 ,  B01J2523/55

    摘要： A process for preparing a vanadium, phosphorus, and oxygen comprising catalyst precursor for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms, which comprises (a) reacting vanadium pentoxide with 102% to 110% strength phosphoric acid in the presence of isobutanol and optionally of a primary or secondary, noncyclic or cyclic, unbranched or branched, saturated alcohol having 3 to 6 carbon atoms in a temperature range from 80 to 160° C.; (b) isolating the precipitate formed; (c) (i) drying the isolated precipitate down to a residual isobutanol content of less than 5% by weight; (ii) then passing a gas which in addition to one or more inert gases comprises 0.1% to 9% by volume of oxygen through the dried precipitate, directly or after isolation, in the temperature range from 130° C. to 200° C.

    摘要翻译： 一种制备钒，磷和氧的方法，包括通过异构催化气相氧化具有至少四个碳原子的烃来制备马来酸酐的催化剂前体，其包括（a）五氧化二钒与102％至110％的强度 磷酸在异丁醇存在下和任选的在80至160℃的温度范围内具有3至6个碳原子的伯或仲，非环或环状，无支链或支链的饱和醇。 （b）分离形成的沉淀物; （c）（i）将分离的沉淀物干燥至低于5重量％的残余异丁醇含量; （ii）然后在130℃至200℃的温度范围内直接或分离后通过除一种或多种惰性气体外还含有0.1％至9％（体积）氧气的气体。

    PROCESS FOR CONTROLLING A GAS PHASE OXIDATION REACTOR FOR PREPARATION OF PHTHALIC ANHYDRIDE
    8.
    发明申请
    PROCESS FOR CONTROLLING A GAS PHASE OXIDATION REACTOR FOR PREPARATION OF PHTHALIC ANHYDRIDE 有权
    用于控制气相氧化反应器的方法，用于制备PHALALAL ANHYDRIDE

    公开(公告)号：US20110251405A1

    公开(公告)日：2011-10-13

    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。

    PROCESS FOR PREPARING C1-C4-OXYGENATES BY PARTIAL OXIDATION OF HYDROCARBONS
    9.
    发明申请
    PROCESS FOR PREPARING C1-C4-OXYGENATES BY PARTIAL OXIDATION OF HYDROCARBONS 有权
    通过部分氧化制备C1-C4氧化剂的方法

    公开(公告)号：US20110144387A1

    公开(公告)日：2011-06-16

    申请号：US12967337

    申请日：2010-12-14

    申请人： ANNEBART ENGBERT WENTINK ,  STEFAN ALTWASSER ,  YAN LI ,  MICHAEL KRÄMER ,  FRANK ROSOWSKI ,  CATHARINA HORSTMANN

    发明人： ANNEBART ENGBERT WENTINK ,  STEFAN ALTWASSER ,  YAN LI ,  MICHAEL KRÄMER ,  FRANK ROSOWSKI ,  CATHARINA HORSTMANN

    IPC分类号： C07C27/10

    CPC分类号： C07C29/50 ,  C07C45/33 ,  C07C51/215 ,  C07C31/04 ,  C07C47/22 ,  C07C57/04

    摘要： A process for preparing C1-C4-oxygenates from a reactant stream A which comprises essentially a C1-C4-alkane or a mixture of C1-C4-alkanes, by a) branching off a substream B of the reactant stream A and allowing it to react in a reactor with oxygen or an oxygenous gas stream C, which converts a portion of the C1-C4-alkane or a portion of the mixture which comprises C1-C4-alkanes to C1-C4-oxygenates, b) removing at least 90 mol % of the C1-C4-oxygenates formed from the product stream D resulting from step a) to form a remaining low boiler stream E, which comprises combining the low boiler stream E with the reactant stream A without further workup and without combination with the substream B down-stream of the branching site of the substream B.

    摘要翻译： a）从反应物流A制备C1-C4-含氧化合物的方法，该反应物流A基本上包含C 1 -C 4烷烃或C 1 -C 4烷烃的混合物，a）将反应物流A的分支B分支， 在反应器中与氧或有氧气流C反应，C将C1-C4烷烃的一部分或包含C1-C4烷烃的混合物的一部分转化为C1-C4-氧化物，b）除去至少90 由步骤a）产生的产物流D形成的C1-C4-含氧化合物的摩尔％，以形成剩余的低沸点物流E，其包括将低沸点物流E与反应物流A组合而不进一步处理，并且不与 子流B的分支位点下游的子流B