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    Method for producing maleic acid anhydride
    3.
    发明授权
    Method for producing maleic acid anhydride 有权
    马来酸酐生产方法

    公开(公告)号：US06803473B2

    公开(公告)日：2004-10-12

    申请号：US10220746

    申请日：2002-09-05

    申请人： Jens Weiguny ,  Sebastian Storck ,  Andreas Tenten ,  Wilhelm Ruppel

    发明人： Jens Weiguny ,  Sebastian Storck ,  Andreas Tenten ,  Wilhelm Ruppel

    IPC分类号： C07D30760

    CPC分类号： B01J8/067 ,  B01J2208/00212 ,  B01J2208/0053 ,  C07C51/215 ,  C07C57/145

    摘要： In a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of hydrocarbons having at least four carbon atoms using oxygen-containing gases in the presence of a volatile phosphorus compound over a catalyst comprising vanadium, phosphorus and oxygen in a shell-and-tube reactor unit having at least two successive cooled reaction zones, the temperature of the first reaction zone is from 350 to 450° C. and the temperature of the second and further reaction zones is from 350 to 480° C. and the temperature difference between the hottest reaction zone and the coolest reaction zone is at least 2° C.

    摘要翻译： 在使用含氧气体的挥发性磷化合物存在下，在包含钒，磷和氧的催化剂存在下，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方法， 管式反应器单元具有至少两个连续冷却的反应区，第一反应区的温度为350-450℃，第二反应区和其它反应区的温度为350-480℃，温度差为 最热的反应区和最冷的反应区为至少2℃

    Method for producing carbonyl compounds
    4.
    发明授权
    Method for producing carbonyl compounds 失效
    生产羰基化合物的方法

    公开(公告)号：US6133482A

    公开(公告)日：2000-10-17

    申请号：US331063

    申请日：1999-06-16

    申请人： Thomas Fetzer ,  Dirk Demuth ,  Heinz Rutter ,  Helmuth Menig ,  Peter Resch ,  Wilhelm Ruppel ,  Harro Wache

    发明人： Thomas Fetzer ,  Dirk Demuth ,  Heinz Rutter ,  Helmuth Menig ,  Peter Resch ,  Wilhelm Ruppel ,  Harro Wache

    IPC分类号： B01J23/72 ,  C07C45/38 ,  C07C45/39 ,  C07C47/127 ,  C07C45/29

    CPC分类号： C07C45/39 ,  C07C45/38

    摘要： In a process for preparing carbonyl compounds of the formula ##STR1## where R.sup.1 is a hydrogen atom or an alkyl radical having from 1 to 3 carbon atoms, R.sup.2 is a hydrogen atom or a radical of the formula ##STR2## where R.sup.3 is a hydrogen atom or together with R.sup.4 is an oxygen atom, R.sup.4 is the radical OR.sup.6 or together with R.sup.3 is an oxygen atom, R.sup.5 is a hydrogen atom, an alkyl radical having from 1 to 8 carbon atoms or a cyclohexyl or cyclopentyl radical and R.sup.6 is an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula --CH.sub.2 --CHO or --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CHO, by gas-phase oxidation of methanol or alcohols of the formula ##STR3## where R.sup.1 and R.sup.5 are as defined above and R.sup.7 is a hydrogen atom or a radical OR.sup.8 and R.sup.8 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical for the formula --CH.sub.2 --CH.sub.2 --OH or --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --OH, using an oxygen-containing gas in the presence of copper- and/or silver-containing catalysts and an amount of a phosphorus compound which is volatile under the reaction conditions which is such that the amount of phosphorus (calculated as P) is up to 20 ppm, based on the weight of alcohol used, the phosphorus is introduced within the catalyst bed.

    摘要翻译： PCT No.PCT / EP97 / 06856 Sec。 371日期1999年6月16日第 102（e）日期1999年6月16日PCT 1997年12月23日PCT公布。 公开号WO98 / 28251 日期1998年7月2日在制备下式的羰基化合物的方法中，其中R 1是氢原子或具有1至3个碳原子的烷基，R 2是氢原子或下式的基团，其中R 3是氢原子 或与R4一起为氧原子，R4为基团OR6或与R3为氧原子一起，R5为氢原子，具有1至8个碳原子的烷基或环己基或环戊基，R6为烷基 具有1至4个碳原子的基团，环己基或环戊基或式-CH2-CHO或-CH2-CH2-O-CH2-CHO的基团，通过下式的甲醇或醇的气相氧化其中R1 R 5为氢原子或OR 8，R 8为氢原子，碳原子数为1〜4的烷基，环己基或环戊基或式-CH 2 -CH 2 - 的基团， OH或-CH 2 -CH 2 -O-CH 2 -CH 2 -OH，使用含铜气体在铜和/或银-co 在催化剂和一定量的磷化合物中，在反应条件下挥发的量为磷（根据P计算）高达20ppm，基于所使用的醇的重量，磷被引入催化剂 床。

    Method for producing carbonyl compounds
    6.
    发明授权
    Method for producing carbonyl compounds 失效
    生产羰基化合物的方法

    公开(公告)号：US6072087A

    公开(公告)日：2000-06-06

    申请号：US331068

    申请日：1999-06-16

    申请人： Thomas Fetzer ,  Dirk Demuth ,  Heinz Rutter ,  Helmuth Menig ,  Peter Resch ,  Wilhelm Ruppel ,  Harro Wache

    发明人： Thomas Fetzer ,  Dirk Demuth ,  Heinz Rutter ,  Helmuth Menig ,  Peter Resch ,  Wilhelm Ruppel ,  Harro Wache

    IPC分类号： C07B61/00 ,  C07C45/38 ,  C07C45/39 ,  C07C47/127 ,  C07C45/29

    CPC分类号： C07C45/39 ,  C07C45/38

    摘要： The present invention relates to a process for the preparation of carbonyl compounds of the formula ##STR1## in which R.sup.1 denotes a hydrogen atom or an alkyl radical containing from 1 to 3 carbon atoms, R.sup.2 denotes a hydrogen atom or a radical of the formula ##STR2## in which R.sup.3 denotes a hydrogen atom or, together with R.sup.4, an oxygen atom, R.sup.4 denotes the radical OR.sup.6 or, together with R.sup.3, an oxygen atom, R.sup.5 denotes a hydrogen atom or an alkyl radical containing from 1 to 8 carbon atoms or a cyclohexyl or cyclopentyl radical, and R.sup.6 denotes an alkyl radical containing from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula--CH.sub.2 --CHO or --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CHO,by gas-phase oxidation of methanol or alcohols of the formula ##STR3## in which R.sup.1 and R.sup.5 have the meanings specified above and R.sup.7 denotes a hydrogen atom or a radical OR.sup.8, and R.sup.8 denotes a hydrogen atom, an alkyl radical containing from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula --CH.sub.2 --CH.sub.2 --OH or --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --OH, using an oxygen-containing gas in the presence of a (copper and/or silver)-containing catalyst and a phosphorus compound which is volatile under the conditions of the reaction and is present in an amount such that the weight of phosphorus (calculated as P), based on the weight of alcohol used, is not more than 20 ppm, wherein the amount of phosphorus used is divided into at least two portions, of whicha) the first portion is added together with the mixture of gaseous starting materials before this reaches the catalyst bed andb) at least one further portion is added within the catalyst bed.

    摘要翻译： PCT No.PCT / EP97 / 06855 Sec。 371日期1999年6月16日第 102（e）日期1999年6月16日PCT 1997年12月9日PCT公布。 WO98 / 28250 PCT出版物 日期：1998年7月2日本发明涉及制备式中羰基化合物的方法，其中R 1表示氢原子或含有1至3个碳原子的烷基，R 2表示氢原子或 式中R 3表示氢原子，或与R 4一起形成氧原子，R 4表示基团OR 6，或与R 3一起形成氧原子，R 5表示氢原子或含有1〜8个碳原子的烷基，或 环己基或环戊基，R6表示含有1至4个碳原子的烷基，环己基或环戊基或式-CH2-CHO或-CH2-CH2-O-CH2-CHO的基团， 其中R1和R5具有上述含义的甲醇或醇的相氧化，R7表示氢原子或OR8基，R8表示氢原子，含有1至4个碳原子的烷基，环己基 或环戊基或基团 使用含氧气体在含（铜和/或银）催化剂和挥发性的磷化合物的存在下，使用含氧气体，-CH2-CH2-OH或-CH2-CH2-O-CH2-CH2-OH 反应条件以使得基于所使用的醇的重量计算的磷重量（以P计）不超过20ppm的量存在，其中使用的磷的量被分成至少两个 部分，其中a）第一部分在气体原料混合物到达催化剂床之前一起加入，以及b）在催化剂床内加入至少另外一部分。

    Catalytic gas-phase oxidation of propene to acrolein
    7.
    发明授权
    Catalytic gas-phase oxidation of propene to acrolein 失效
    丙烯催化气相氧化成丙烯醛

    公开(公告)号：US5821390A

    公开(公告)日：1998-10-13

    申请号：US525011

    申请日：1995-09-08

    申请人： Wilhelm Ruppel ,  Ulrike Wegerle ,  Andreas Tenten ,  Ulrich Hammon

    发明人： Wilhelm Ruppel ,  Ulrike Wegerle ,  Andreas Tenten ,  Ulrich Hammon

    IPC分类号： B01J23/88 ,  B01J8/06 ,  B01J21/02 ,  B01J23/16 ,  B01J23/887 ,  B01J27/132 ,  B01J27/192 ,  C07B61/00 ,  C07C45/35 ,  C07C47/22

    CPC分类号： B01J27/192 ,  B01J23/8876 ,  B01J8/067 ,  C07C45/35 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2219/00777

    摘要： A gas-phase mixture of propene and oxygen is catalytically oxidized by passing a reactant gas mixture comprising propene and oxygen through a plurality of catalyst containing contact tubes in a fixed bed reactor and simultaneously passing only one heat-exchange medium at elevated temperature over the exterior surfaces of the contact tubes in a longitudinal flow pattern which is cocurrent with the direction of flow of the reactants through said tube; simultaneously superposing a transverse flow on said longitudinal flow of heat exchange medium by means of an arrangement of successive baffles along the contact tubes which leave passage cross-sections free, thereby resulting in a meandrous flow of the heat-exchange medium through the reactor and setting the flow rate of said heat-exchange medium so that its temperature between the point of entry of the medium into the reactor and its point of exit increases by 2.degree. to 10.degree. C.; and obtaining product acrolein at a selectivity .gtoreq.85 mol % from the reactor at a single pass propene conversion .gtoreq.90 mol %.

    摘要翻译： 丙烯和氧气的气相混合物通过在固定床反应器中通过包含丙烯和氧气的反应气体混合物通过多个含有接触管的催化剂催化氧化，同时仅使一个热交换介质在高温下通过外部 接触管的表面以与通过所述管的反应物的流动方向并流的纵向流动图案; 同时通过沿着接触管的连续挡板的布置使横向流在所述纵向流动的热交换介质上，使得通道横截面自由，从而导致热交换介质通过反应器的蜿蜒流动和设定 所述热交换介质的流速使得其进入反应器的入口点和其出口点之间的温度升高2℃至10℃; 并且在单次丙烯转化率为90摩尔％时，以反应器的选择性> 85％摩尔得到产物丙烯醛。

    Catalytic gas-phase oxidation of acrolein to acrylic acid
    8.
    发明授权
    Catalytic gas-phase oxidation of acrolein to acrylic acid 失效
    丙烯醛催化气相氧化成丙烯酸

    公开(公告)号：US5739391A

    公开(公告)日：1998-04-14

    申请号：US525118

    申请日：1995-09-08

    申请人： Wilhelm Ruppel ,  Ulrike Wegerle ,  Andreas Tenten ,  Ulrich Hammon

    发明人： Wilhelm Ruppel ,  Ulrike Wegerle ,  Andreas Tenten ,  Ulrich Hammon

    IPC分类号： B01J23/28 ,  B01J8/06 ,  B01J21/02 ,  B01J23/16 ,  C07B61/00 ,  C07C51/25 ,  C07C57/055 ,  C07C51/16

    CPC分类号： B01J8/067 ,  C07C51/252 ,  B01J2208/00212

    摘要： A process for the catalytic gas-phase oxidation of acrolein to acrylic acid in a multiple contact tube fixed-bed reactor through whose space surrounding the contact tubes only one heat-exchange medium circuit is passed, at elevated temperature on catalytically active multimetal oxides with an acrolein conversion for a single pass of .gtoreq.95 mol % and an acrylic acid formation selectivity of .gtoreq.90 mol %, which comprises firstly passing the heat-exchange medium through the multiple contact tube fixed-bed reactor longitudinally, considered over the reaction container as a whole, to the contact tubes in cocurrent to the reaction-gas mixture and secondly superposing a transverse flow within the reaction container by means of an arrangement of successive baffles along the contact tubes which leaves passage cross sections free, so as to give a meandrous flow of the heat-exchange medium, seen in longitudinal section through the contact tube bundle, and setting the flow rate of the circulated heat-exchange medium so that its temperature rises by from 2.degree. to 10.degree. C. between the point of entry into the reactor and the point of exit out of the reactor.

    摘要翻译： 一种在多接触管固定床反应器中将丙烯醛催化气相氧化成丙烯酸的方法，其中通过其接触管周围的空间仅使一个热交换介质回路在高温下通过催化活性多金属氧化物，其具有 丙烯醛转化率为> / = 95mol％，丙烯酸形成选择性> 90wt％，其包括首先使热交换介质通过多接触管固定床反应器纵向通过 反应容器作为整体，与反应气体混合物并流到接触管，并且其次通过沿接触管的连续挡板的布置叠加在反应容器内的横向流动，使得通道横截面自由，从而 通过接触管束在纵剖面中看到热交换介质的蜿蜒流动，并设定循环hea的流量 t-交换介质，使其在进入反应器的点和从反应器出来的点之间的温度升高2℃至10℃。