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19 条记录 (耗时 0.021 秒)

    Process for preparing C1-C4-oxygenates by partial oxidation of hydrocarbons
    13.
    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 METHANOL AND ACETIC ACID
    16.
    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 preparing acrylic acid from ethanol and formaldehyde
    18.
    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 。

    PROCESS FOR PREPARING ACRYLIC ACID FROM ETHANOL AND FORMALDEHYDE
    19.
    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 。