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    Process for preparing C1-C4-oxygenates by partial oxidation of hydrocarbons
    1.
    发明授权
    Process for preparing C1-C4-oxygenates by partial oxidation of hydrocarbons 有权
    通过烃的部分氧化制备C1-C4-含氧化合物的方法

    公开(公告)号：US08609906B2

    公开(公告)日：2013-12-17

    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： C07C27/00

    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

    PROCESS FOR PREPARING ACRYLIC ACID FROM ETHANOL AND FORMALDEHYDE
    2.
    发明申请
    PROCESS FOR PREPARING ACRYLIC ACID FROM ETHANOL AND FORMALDEHYDE 有权
    从乙醇和甲醛制备丙烯酸的方法

    公开(公告)号：US20120071687A1

    公开(公告)日：2012-03-22

    申请号：US13232380

    申请日：2011-09-14

    申请人： Stefanie Herzog ,  Stefan Altwasser ,  Markus Ottenbacher ,  Frank Hütten ,  Annebart Engbert Wentink ,  Alexander Schäfer

    发明人： Stefanie Herzog ,  Stefan Altwasser ,  Markus Ottenbacher ,  Frank Hütten ,  Annebart Engbert Wentink ,  Alexander Schäfer

    IPC分类号： C07C57/04 ,  C07C51/23

    CPC分类号： C07C57/04 ,  C07B2200/05 ,  C07C51/235 ,  C07C51/353 ,  C07C53/08

    摘要： A process for preparing acrylic acid from ethanol and formaldehyde, in which, in a reaction zone A, the ethanol is partially oxidized to acetic acid in a heterogeneously catalyzed gas phase reaction, the product gas mixture A obtained and a formaldehyde 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 with acetic acid present in reaction gas input mixture B to acrylic acid under heterogeneous catalysis in a reaction zone B, and unconverted acetic acid still present along-side 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： 一种从乙醇和甲醛制备丙烯酸的方法，其中在反应区A中乙醇在非均相催化气相反应中部分氧化成乙酸，得到的产物气体混合物A和甲醛源用于获得 反应气体输入混合物B，其包含乙酸和甲醛，并且乙酸超过甲醛，反应气体输入混合物B中存在的甲醛与反应气体输入混合物B中存在的乙酸醛醛缩合成丙烯酸 在反应区B中的非均相催化下，从得到的产物气体混合物B中沿着丙烯酸目标产物仍然存在未转化的乙酸，除去乙酸，再循环到反应气体输入混合物B 。

    Process for preparing acrylic acid from ethanol and formaldehyde
    3.
    发明授权
    Process for preparing acrylic acid from ethanol and formaldehyde 有权
    从乙醇和甲醛制备丙烯酸的方法

    公开(公告)号：US08507721B2

    公开(公告)日：2013-08-13

    申请号：US13232380

    申请日：2011-09-14

    申请人： Stefanie Herzog ,  Stefan Altwasser ,  Markus Ottenbacher ,  Frank Huetten ,  Annebart Engbert Wentink ,  Alexander Schaefer

    发明人： Stefanie Herzog ,  Stefan Altwasser ,  Markus Ottenbacher ,  Frank Huetten ,  Annebart Engbert Wentink ,  Alexander Schaefer

    IPC分类号： C07B35/00

    CPC分类号： C07C57/04 ,  C07B2200/05 ,  C07C51/235 ,  C07C51/353 ,  C07C53/08

    摘要： A process for preparing acrylic acid from ethanol and formaldehyde, in which, in a reaction zone A, the ethanol is partially oxidized to acetic acid in a heterogeneously catalyzed gas phase reaction, the product gas mixture A obtained and a formaldehyde 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 with acetic acid present in reaction gas input mixture B to acrylic acid under heterogeneous catalysis in a reaction zone B, and unconverted acetic acid still present along-side 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： 一种从乙醇和甲醛制备丙烯酸的方法，其中在反应区A中乙醇在非均相催化气相反应中部分氧化成乙酸，得到的产物气体混合物A和甲醛源用于获得 反应气体输入混合物B，其包含乙酸和甲醛，并且乙酸超过甲醛，反应气体输入混合物B中存在的甲醛与反应气体输入混合物B中存在的乙酸醛醛缩合成丙烯酸 在反应区B中的非均相催化下，除去所得产物气体混合物B中仍然存在丙烯酸目标产物的未转化乙酸，并将除去的乙酸再循环到反应气体输入混合物B 。

    CATALYST FOR THE OXIDATION OF O-XYLENE AND/OR NAPHTHALENE TO PHTHALIC ANHYDRIDE
    5.
    发明申请
    CATALYST FOR THE OXIDATION OF O-XYLENE AND/OR NAPHTHALENE TO PHTHALIC ANHYDRIDE 有权
    将O-二甲苯和/或萘甲酸氧化成邻苯二甲酸的催化剂

    公开(公告)号：US20120029214A1

    公开(公告)日：2012-02-02

    申请号：US13194126

    申请日：2011-07-29

    申请人： Stefan Altwasser ,  Jürgen Zühlke ,  Frank Rosowski ,  Michael Krämer

    发明人： Stefan Altwasser ,  Jürgen Zühlke ,  Frank Rosowski ,  Michael Krämer

    IPC分类号： C07D307/89 ,  C01G30/00

    CPC分类号： C07D307/89 ,  B01J23/22 ,  B01J35/002 ,  B01J35/026 ,  B01J35/1014 ,  B01J37/0045

    摘要： The present invention relates to a catalyst for the oxidation of o-xylene and/or naphthalene to phthalic anhydride, which has a plurality of catalyst zones which are arranged in series in the reaction tube and have been produced using an antimony trioxide which comprises a significant proportion of valentinite. The present invention further relates to a process for gas-phase oxidation, in which a gas stream comprising at least one hydrocarbon and molecular oxygen is passed through a catalyst produced using an antimony trioxide which comprises a significant proportion of valentinite.

    摘要翻译： 本发明涉及用于将邻二甲苯和/或萘氧化成邻苯二甲酸酐的催化剂，其具有多个催化剂区，其在反应管中串联排列并且已经使用三氧化锑生产，所述三氧化锑包含显着的 百分比的比例。 本发明还涉及一种用于气相氧化的方法，其中包含至少一种烃和分子氧的气流通过使用三氧化锑生成的催化剂，所述三氧化锑包含显着比例的极性。

    Process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride
    10.
    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。