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    PROCEDIMIENTO PARA LA OBTENCION DE ANHIDRIDO DE ACIDO MALEICO.
    52.
    发明专利
    PROCEDIMIENTO PARA LA OBTENCION DE ANHIDRIDO DE ACIDO MALEICO. 未知

    公开(公告)号：ES2253707T3

    公开(公告)日：2006-06-01

    申请号：ES03784039

    申请日：2003-07-22

    Applicant: BASF AG

    Inventor： WEIGUNY JENS ,  RUPPEL WILHELM ,  DUDA MARK

    IPC: C07B61/00 ,  C07D307/60

    Abstract: Procedimiento para la obtención de anhídrido de ácido maléico mediante oxidación en fase gaseosa catalizada por vía heterogénea de hidrocarburos con al menos 4 átomos de carbono con gases que contienen oxígeno en presencia de un compuesto de fósforo volátil en un catalizador que contiene vanadio, fósforo y oxígeno en una unidad de reactor de haz de tubos con al menos una zona de reacción enfriada a través de un medio soporte de calor, a una temperatura en el intervalo de 350 a 500ºC, caracterizado porque en la primera zona de reacción, respecto a la alimentación de educto, la temperatura de admisión y/o la cantidad de admisión de medio soporte de calor se ajustan de tal manera que la temperatura media del medio soporte de calor en la primera zona de reacción TSB (1ª zona), que resulta mediante promedio de temperatura de admisión y temperatura de descarga del medio soporte de calor, que cumple las fórmulas (I) y (II). Tss(1ª zona) TD (1ª zona)- TSafety (1ª zona) (I) TSB, Amax (1ª zona)- TA (1ª zona) TSB (1ª zona) TSB, Amax (1ª zona) + TB (1ª zona) (II) representando TD (1ª zona) la temperatura de paso de la primera zona de reacción, correspondiendo ésta a la temperatura media del medio soporte de calor TSB (1ª zona), en la que un aumento de una temperatura media alrededor de 1 ºC más bajo del medio soporte de calor, TSB (1ª zona) - 1ºC alrededor de 1ºC sobre TSB (1ª zona) provoca un aumento de la temperatura de punto térmico en la primera zona de reacción THS (1ª zona) de alrededor de 5ºC; representando TSafety (1ª zona) la temperatura de seguridad de la primera zona de reacción, y ascendiendo a 1ºC; representando TSB, Amax (1ª zona) la temperatura media del medio soporte de calor en la primera zona de reacción, a la que se alcanza el máximo de rendimiento en anhídrido de ácido maléico en el intervalo de TSB (1ª zona) TD (1ª zona); ascendiendo TA (1ª zona) a 20ºC; y ascendiendo TB (1ª zona) a 10ºC.

    53.
    发明专利
    未知

    公开(公告)号：BRPI0408629A

    公开(公告)日：2006-03-28

    申请号：BRPI0408629

    申请日：2004-03-20

    Applicant: BASF AG

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

    IPC: C07C51/25 ,  C07C57/05

    Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid, the propene-containing starting reaction gas mixture is oxidized in a first reaction stage using a fixed catalyst bed 1 which consists of a plurality of fixed catalyst bed zones and is accommodated in two successive temperature zones A, B, and the acrolein-containing product gas mixture of the first reaction stage is then oxidized in a second reaction stage using a fixed catalyst bed 2 which consists of a plurality of fixed catalyst bed zones and is accommodated in two successive temperature zones C, D, and the transition from one temperature zone to another temperature zone within one reaction stage does not spatially coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.

    54.
    发明专利
    未知

    公开(公告)号：BR0313026A

    公开(公告)日：2005-07-12

    申请号：BR0313026

    申请日：2003-07-22

    Applicant: BASF AG

    Inventor： WEIGUNY JENS ,  RUPPEL WILHELM ,  DUDA MARK

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

    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

    CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACROLEIN
    56.
    发明专利
    CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACROLEIN 未知

    公开(公告)号：MY117281A

    公开(公告)日：2004-06-30

    申请号：MYPI9502666

    申请日：1995-09-08

    Applicant: BASF AG

    Inventor： RUPPEL WILHELM ,  WEGERLE ULRIKE ,  TENTEN ANDREAS ,  HAMMON ULRICH

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

    Abstract: A PROCESS FOR THE CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACROLEIN 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 A PROPENE CONVERSION FOR A SINGLE PASS OF > 90 MOLAND AN ACROLEIN FORMATION SELECTIVITY OF > 85 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 SECONDALY SUPERPOSING A TRANSVERSE FLOW WITHIN THE REACTION CONTAINER BY MEANS OF AN ARRANGEMENT OF SUCCESSIVE BAFFLES ALONG THE CONTACT TUBES WHICH LEAVES PASSAGE CROSS SECTION 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 TO 10° BETWEEN THE POINT OF ENTRY INTO THE REACTOR AND THE POINT OF EXIT OUT OF THE REACTOR.

    Method for producing maleic anhydride
    58.
    发明专利
    Method for producing maleic anhydride 未知

    公开(公告)号：AU2003251439A8

    公开(公告)日：2004-02-25

    申请号：AU2003251439

    申请日：2003-07-22

    Applicant: BASF AG

    Inventor： RUPPEL WILHELM ,  WEIGUNY JENS ,  DUDA MARK

    IPC: C07B61/00 ,  C07D307/60

    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

    METHOD FOR PRODUCING MALEIC ANHYDRIDE
    59.
    发明专利
    METHOD FOR PRODUCING MALEIC ANHYDRIDE 未知

    公开(公告)号：AU2003251439A1

    公开(公告)日：2004-02-25

    申请号：AU2003251439

    申请日：2003-07-22

    Applicant: BASF AG

    Inventor： WEIGUNY JENS ,  RUPPEL WILHELM ,  DUDA MARK

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

    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

    METHOD FOR PRODUCING MALEIC ANHYDRIDE
    60.
    发明专利
    METHOD FOR PRODUCING MALEIC ANHYDRIDE 未知

    公开(公告)号：CA2493621A1

    公开(公告)日：2004-02-19

    申请号：CA2493621

    申请日：2003-07-22

    Applicant: BASF AG

    Inventor： WEIGUNY JENS ,  DUDA MARK ,  RUPPEL WILHELM

    IPC: C07B61/00 ,  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 an d 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 an d 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 formatio n of the supply temperature and the drainage temperature of the heat-transfer medium, fulfils the formulas (I) and (II): (I) TSB(1st zone)

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