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    METHOD FOR PRODUCING MALEIC ANHYDRIDE
    4.
    发明申请
    METHOD FOR PRODUCING MALEIC ANHYDRIDE 审中-公开
    制备马来酸酐的方法

    公开(公告)号：WO2004014833A2

    公开(公告)日：2004-02-19

    申请号：PCT/EP0307982

    申请日：2003-07-22

    Applicant: BASF AG ,  WEIGUNY JENS ,  RUPPEL WILHELM ,  DUDA MARK

    Inventor： WEIGUNY JENS ,  RUPPEL WILHELM ,  DUDA MARK

    IPC: C07B61/00 ,  C07D307/60 ,  C07C51/00

    CPC classification number: C07D307/60

    Abstract: The invention relates to a method for producing maleic anhydride by the heterogeneous catalytic gas phase oxidation of hydrocarbons comprising at least four carbon atoms with gases containing oxygen, in the presence of a volatile phosphorus compound, on a catalyst containing vanadium, phosphor and oxygen in a multitube flow reactor unit with at least one reaction zone that is cooled by a heat-transfer medium, at a temperature ranging between 350 and 500 °C. In the first reaction zone, in relation to the educt supply, the supply temperature and/or the supply quantity is set in such a way that the average temperature of the heat transfer medium in the first reaction zone TSB(1st zone), said temperature being produced by the average value formation of the supply temperature and the drainage temperature of the heat-transfer medium, fulfils the formulas (I) and (II): (I) TSB(1st zone)

    Abstract translation: 一种用于通过具有在挥发性含磷化合物的催化剂在具有钒，磷和氧在管束反应器单元的至少一个的温度在所述范围由载热介质的反应区中冷却的存在下与含氧气体的至少四个碳原子的烃的非均相催化气相氧化制备马来酸酐的方法 从350至500℃，其中，在其中进料的温度和/或载热介质的供给量相对于被调节到反应物供应，在第一反应区，使得在第一反应区TSB载热介质的平均温度（第一区 ），其通过平均入口温度和载热介质的流动温度，式（I）和（II）得到的：TSB（第一区）<= TD（1个区） - TSafety（1个区）（I）... ; TSB，λ最大（1个区） - TA <= TSB（第一区）<= TSB，λ最大+ TB（II）被满足，其中TD（1（1区）（1个区）（1个区）。。。。 用于第一反应区的通过温度; TSafety（第一区）代表第一反应区的安全温度，为1°C; （1个区）TSB，λ最大是在第一反应区中的载热介质，其中，在TSB（第一区）的范围内的平均温度<= TD最大产率在马来酸酐实现。（1个区）; TA（第一区）为20°C; 和TB（第一区）是10℃

    7.
    发明专利
    未知

    公开(公告)号：DE502004003884D1

    公开(公告)日：2007-07-05

    申请号：DE502004003884

    申请日：2004-03-20

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  ARNOLD HEIKO ,  RUPPEL WILHELM ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C57/055 ,  C07C51/25

    Abstract: The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of acrolein to form acrylic acid, whereby the initial mixture of reaction gas is oxidised on a fixed-bed catalyst bed which consists of at least two fixed-bed catalyst bed zones and is arranged in two successive temperature zones A and B. The transition from temperature zone A to temperature zone B does not coincide with a transition from a fixed-bed catalyst bed zone to another fixed-bed catalyst bed zone.

    Production of maleic anhydride, useful for the production of gamma-butyrolactone, by heterogeneous catalytic gas phase oxidation of hydrocarbons with oxygen-containing gas in a reaction zone cooled by a heat exchange medium
    10.
    发明专利
    Production of maleic anhydride, useful for the production of gamma-butyrolactone, by heterogeneous catalytic gas phase oxidation of hydrocarbons with oxygen-containing gas in a reaction zone cooled by a heat exchange medium 未知

    公开(公告)号：DE10235355A1

    公开(公告)日：2004-02-19

    申请号：DE10235355

    申请日：2002-08-02

    Applicant: BASF AG

    Inventor： WEIGUNY JENS ,  RUPPEL WILHELM ,  DUDA MARK

    IPC: C07B61/00 ,  C07D307/60 ,  B01J27/198

    Abstract: A process for the production of maleic acid anhydride by heterogeneous catalytic gas phase oxidation of hydrocarbons having at least four carbon atoms with oxygen-containing gas in the presence of a volatile phosphorus compound at a vanadium, phosphorus and oxygen-containing catalyst in a tubular reactor unit having at least one reaction zone cooled by a heat exchange medium at 350-500 degreesC. A process for the production of maleic acid anhydride by heterogeneous catalytic gas phase oxidation of hydrocarbons having at least four carbon atoms with oxygen-containing gas in the presence of a volatile phosphorus compound at a vanadium, phosphorus and oxygen-containing catalyst in a tubular reactor unit having at least one reaction zone cooled by a heat exchange medium at 350-500 degreesC. With respect to the addition of reactants to the first reaction zone, the addition temperature and/or addition amount of the heat exchange medium are such that the average temperature of the heat exchange medium in the first reaction zone (TSB(1. zone)) is described by formula (1) and (2). TSB(1.zone) at most TD(1.zone)-TSafety(1.zone) (1) TSB,Amax(1.zone)-TA(1.zone) at most TSB(1.zone) at most TSB,Amax(1.zone)+TB(1.zone) (2) TD(1.zone) = through temperature in the first reaction zone corresponding to the average temperature of the heat exchange medium at which a 1 degreesC increase in the average temperature of the heat exchange medium results in a 5 degreesC increase of the hot spot temperature of the first reaction zone THS(1.zone); TSB(1.zone) = average temperature of the heat exchange medium; TSafety(1.zone) = safety temperature of the first reaction zone and is 1 degreesC; TSB,Amax(1.zone) = average temperature of the heat exchange medium in the first reaction zone in the region TSB(1.zone) of no greater than T (1.zone) corresponding to the maximum yield of maleic acid anhydride; T (1.zone) = 20 degreesC; T (1.zone) = 10 degreesC

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