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    PROCESS FOR PRODUCING PROPYLENE OXIDE
    61.
    发明授权
    PROCESS FOR PRODUCING PROPYLENE OXIDE 有权
    生产环氧丙烷的方法

    公开(公告)号：EP1899311B1

    公开(公告)日：2010-12-15

    申请号：EP06777367.1

    申请日：2006-06-20

    Applicant: BASF SE ,  THE DOW CHEMICAL COMPANY

    Inventor： SCHINDLER, Götz-Peter ,  WALSDORFF, Christian ,  KÖRNER, Reinhard ,  GÖBBEL, Hans-Georg

    IPC: C07D301/12

    CPC classification number: C07D301/12

    Abstract: The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (Gl) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene oxide from mixture (Gl) to give a mixture (GII) comprising propene and oxygen; (III) reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising Sn and at least one noble metal.

    Abstract translation: 本发明涉及生产环氧丙烷的方法，其包括（I）在催化剂存在下使丙烯与过氧化氢反应，得到包含环氧丙烷，未反应的丙烯和氧的混合物（G1）; （II）从混合物（G1）分离环氧丙烷以得到包含丙烯和氧的混合物（GII）; （III）在包含Sn和至少一种贵金属的催化剂存在下，至少部分地通过与氢反应来还原混合物（GII）中所含的氧。

    VERFAHREN ZUR DEHYDRIERUNG VON KOHLENWASSERSTOFFEN BEINHALTEND DEHYDRIERUNGS- UND OXIDATIONSSCHRITTE
    62.
    发明公开
    VERFAHREN ZUR DEHYDRIERUNG VON KOHLENWASSERSTOFFEN BEINHALTEND DEHYDRIERUNGS- UND OXIDATIONSSCHRITTE 审中-公开
    PROCESS碳氢化合物含脱水和氧化步骤的脱水

    公开(公告)号：EP2094628A2

    公开(公告)日：2009-09-02

    申请号：EP07822664.4

    申请日：2007-11-16

    Applicant: BASF SE

    Inventor： HOUSSIN, Christophe ,  VORBERG, Gerald ,  WALSDORFF, Christian

    IPC: C07C5/333 ,  C07C15/46

    CPC classification number: C07C5/333 ,  C07C5/48 ,  C07C15/46

    Abstract: The invention relates to a method for producing styrene by the dehydrogenation of ethyl benzene, comprising steps (i) to (iii): (i) in a first dehydrogenation step, a gas mixture containing ethyl benzene and optionally water vapour is brought into contact with a first dehydrogenation catalyst A, producing a reaction gas containing ethyl benzene, styrene and hydrogen, (ii) in an oxidation step, the reaction gas obtained in the first dehydrogenation step is brought into contact with oxygen in the presence of an oxidation catalyst, whereby the hydrogen is at least partially burnt, (iii) in a second dehydrogenation step, the reaction gas obtained in the oxidation step is brought into contact with a second dehydrogenation catalyst B, which is characterised in that the molar ratio of hydrogen to ethyl benzene in the reaction gas obtained according to the first dehydrogenation step is greater than 0.4.

    CATALYST FOR PRODUCING ETHYLENE OXIDE BY GAS-PHASE OXIDATION
    70.
    发明公开
    CATALYST FOR PRODUCING ETHYLENE OXIDE BY GAS-PHASE OXIDATION 审中-公开

    公开(公告)号：EP3639924A1

    公开(公告)日：2020-04-22

    申请号：EP18200499.4

    申请日：2018-10-15

    Applicant: BASF SE

    Inventor： KARPOV, Andrey ,  KENNEMA, Marco Oskar ,  DUYCKAERTS, Nicolas ,  WALSDORFF, Christian ,  BARTOSCH, Christian ,  ZUEHLKE, Jürgen ,  ROMERO VALLE, Miguel Angel

    IPC: B01J37/02 ,  B01J21/04 ,  B01J23/68 ,  B01J35/00 ,  B01J35/02 ,  B01J35/10

    Abstract: A shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene, comprising silver deposited on a porous refractory support, the shaped catalyst body having a first face side surface, a second face side surface and a circumferential surface, characterized by a content of at least 20 wt.-% of silver, relative to the total weight of the shaped catalyst body; a cylinder structure with a plurality of void spaces running in the cylinder periphery along the cylinder height to form a multilobe structure; a plurality of passageways extending from the first face side surface to the second face side surface, outer passageways being arranged around a central passageway with one outer passageway being assigned to each lobe, wherein neighboring outer passageways are arranged essentially equidistantly to each other and the outer passageways are arranged essentially equidistantly to the central passageway; a shortest distance A between two neighboring passageways in the range of 0.6 to 1.3 mm; a shortest distance B between each outer passageway and the circumferential surface in the range of 1.1 to 1.8 mm; and a BET surface area in the range of 1.6 to 3.0 m 2 /g. The shaped catalyst bodies allow for a favorable balance between mechanical stability, pressure drop and selectivity. The invention also relates to a process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising reacting ethylene and oxygen in the presence of a shaped catalyst body as defined above. The invention further relates to a process for preparing a shaped catalyst body as above, comprising i) impregnating a refractory support having a BET surface area in the range of 1.4 to 2.5 m 2 /g with a silver impregnation solution; and ii) subjecting the impregnated refractory support to a calcination process; wherein steps i) and ii) are optionally repeated.

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