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    METHOD FOR PRODUCING MALEIC ANHYDRIDE
    2.
    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℃

    CATALYST AND METHOD FOR PRODUCING MALEIC ANHYDRIDE
    4.
    发明申请
    CATALYST AND METHOD FOR PRODUCING MALEIC ANHYDRIDE 审中-公开
    催化剂及其生产顺酐

    公开(公告)号：WO0234387A8

    公开(公告)日：2002-05-23

    申请号：PCT/EP0112445

    申请日：2001-10-26

    Applicant: BASF AG ,  STORCK SEBASTIAN ,  WEIGUNY JENS ,  DUDA MARK ,  COX GERHARD

    Inventor： STORCK SEBASTIAN ,  WEIGUNY JENS ,  DUDA MARK ,  COX GERHARD

    IPC: C07D307/60 ,  B01J27/198 ,  B01J35/02 ,  B01J37/08 ,  C07B61/00 ,  C07C51/215 ,  C07C51/225 ,  C07C57/145

    CPC classification number: B01J37/08 ,  B01J27/198 ,  B01J35/026 ,  C07C51/215 ,  C07C57/145

    Abstract: The invention relates to a vanadium-, phosphorus- and oxygen-containing catalyst that is used for producing maleic anhydride by heterogeneous catalytic gas phase oxidation of a hydrocarbon carrying at least four carbon atoms in which the ratio of phosphorus/vanadium is 0.9 to 1.5. Said catalyst comprises particles with an average diameter of at least 2 mm and the composition has a x-ray powder diffraction pattern, obtained by irradiation with CuK alpha radiation ( lambda = 1.54 10 m), that produces in the 2 theta range of 10 DEG to 70 DEG a signal/noise ratio of

    Abstract translation: Vnadium，磷和催化剂用于通过具有至少四个碳原子的烃，其中所述磷/钒比为0.9〜1.5的非均相催化气相氧化制备马来酸酐，具有含氧，其具有至少2mm的平均直径的颗粒 且其中使用CuKα辐射的组合物（拉姆达= 1.54。10- <10>米）的粉末XRöntgenbeugungsdiagram结果的θ2在10°〜70°时，信号/背景比 将含有钒和磷相位所有衍射线可以归因，包括

    5.
    发明专利
    未知

    公开(公告)号：BRPI0517615A

    公开(公告)日：2008-10-14

    申请号：BRPI0517615

    申请日：2005-11-11

    Applicant: BASF AG

    Inventor： CRONE SVEN ,  KLANNER CATHARINA ,  SCHINDLER GOETZ-PETER ,  DUDA MARK ,  BORGMEIER FRIEDER

    IPC: C07C5/333 ,  C07C11/167

    Abstract: Processes for producing butadiene from n-butane comprising: (a) providing a feed gas stream comprising n-butane; (b) non-oxidatively dehydrogenating the feed gas stream in the presence of a catalyst in a first dehydrogenation zone to form a first intermediate gas stream comprising n-butane, 1-butene, 2-butene, butadiene and hydrogen; (c) oxidatively dehydrogenating the first intermediate gas stream in the presence of an oxygenous gas having an oxygen content of at least 75% by volume in a second dehydrogenation zone to form a second intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (d) compressing and cooling the second intermediate gas to form a first condensate stream comprising water and a third intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (e) compressing and cooling the third intermediate gas to form a second condensate stream comprising n-butane, butadiene and water and a fourth intermediate gas stream comprising n-butane, butadiene, hydrogen and carbon dioxide; (1) cooling the fourth intermediate gas stream to form a third condensate stream comprising n-butane and butadiene, and an offgas stream comprising carbon dioxide and hydrogen; (g) removing water from the second condensate stream and combining the second condensate stream and third condensate stream to form a C 4 hydrocarbon stream comprising n-butane and butadiene; and (h) separating the C 4 hydrocarbon stream to form a recylce stream comprising n-butane and a product stream comprising butadiene; wherein at least a portion of the recycle stream is fed to the first dehydrogenation zone.

    7.
    发明专利
    未知

    公开(公告)号：BRPI0412985A

    公开(公告)日：2006-10-03

    申请号：BRPI0412985

    申请日：2004-07-06

    Applicant: BASF AG

    Inventor： DUDA MARK ,  MACHHAMMER OTTO ,  WECK ALEXANDER

    IPC: C07C51/215

    Abstract: Maleic anhydride production by gas-phase oxidation of n-butane with oxygen-containing gases on a heterogeneous vanadium-, phosphorus- and oxygen-containing (VPO) catalyst at 350-500[deg]C with recycling of unconverted n-butane is such that (a) the stream entering the reactor has n-butane and O 2 concentrations of 0.5-1.5 and 5-21 volume % respectively; (b) pressure at the inlet is 0.4-2 MPa abs.; and (c) 40-100% of the n-butane is converted. Maleic anhydride (MA) production by gas- phase oxidation of n-butane with oxygen-containing gases on a heterogeneous vanadium-, phosphorus- and oxygen-containing (VPO) catalyst at 350-500[deg]C with MA separation by forming a gas stream containing unconverted n-butane and water and recycling part of the n-butane to the reactor unit is such that (a) the stream entering the reactor has n-butane and oxygen concentrations of 0.5-1.5 and 5-21 volume % respectively; (b) the pressure at the inlet is 0.4-2 MPa abs.; and (c) 40-100% of the n-butane is converted.

    METHOD FOR THE PRODUCTION OF MALEIC ANHYDRIDE
    8.
    发明专利
    METHOD FOR THE PRODUCTION OF MALEIC ANHYDRIDE 未知

    公开(公告)号：CA2533025A1

    公开(公告)日：2005-03-03

    申请号：CA2533025

    申请日：2004-07-06

    Applicant: BASF AG

    Inventor： DUDA MARK ,  WECK ALEXANDER ,  MACHHAMMER OTTO

    IPC: C07C51/215

    Abstract: Disclosed is a method for producing maleic anhydride by means of heterogeneo us catalytic gas phase oxidation of n-butane with gases containing oxygen on a catalyst comprising vanadium, phosphorus, and oxygen in a reactor unit at a temperature ranging between 350 and 500 ~C, whereupon the obtained maleic anhydride is isolated while a gas flow is formed that contains unreacted n- butane and water, and at least some of the unreacted n-butane is recirculate d to the reactor unit. According to the inventive method, an input flow having an n-butane concentration of 0.5 to 1.5 percent by volume and an oxygen concentration of 5 to 21 percent by volume is fed to the reactor unit while a pressure of 0.4 to 2 MPa abs is adjusted at the inlet of the reactor unit an d 40 to 100 percent of the n-butane from the input flow are reacted per reacto r cycle.

    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
    9.
    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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