公开(公告)号：CA2402420A1

公开(公告)日：2001-09-20

申请号：CA2402420

申请日：2001-03-06

Applicant: BASF AG

Inventor： STORCK SEBASTIAN ,  TENTEN ANDREAS ,  RUPPEL WILHELM ,  WEIGUNY JENS

IPC: C07D307/60 ,  B01J27/28 ,  B01J38/04 ,  C07B61/00 ,  C07C51/215

Abstract: 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.

公开(公告)号：DE10011307A1

公开(公告)日：2001-09-13

申请号：DE10011307

申请日：2000-03-10

Applicant: BASF AG

Inventor： WEIGUNY JENS ,  STORCK SEBASTIAN ,  TENTEN ANDREAS

IPC: C07D307/60 ,  B01J27/198 ,  B01J35/00 ,  B01J35/02 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  C07C57/145

Abstract: Vanadium-phosphorus-oxygen (VPO) catalyst for maleic anhydride production by gas-phase oxidation of C4+ hydrocarbons is in the form of hollow cylinders with a ratio of height to inside diameter of at least 1.5 and a ratio of geometric surface area to geometric volume of at least 2 mm . An Independent claim is also included for a process for producing maleic anhydride production by gas-phase oxidation of C4+ hydrocarbons with an oxygen-containing gas in the presence of the VPO catalyst.

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.

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

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

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

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)

公开(公告)号：BR0109070A

公开(公告)日：2003-06-03

申请号：BR0109070

申请日：2001-03-06

Applicant: BASF AG

Inventor： WEIGUNY JENS ,  STORCK SEBASTIAN ,  TENTEN ANDREAS ,  RUPPEL WILHELM

IPC: C07D307/60 ,  B01J27/28 ,  B01J38/04 ,  C07B61/00 ,  C07C51/215

Abstract: 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.

公开(公告)号：DE10046072A1

公开(公告)日：2002-03-28

申请号：DE10046072

申请日：2000-09-15

Applicant: BASF AG

Inventor： STORCK SEBASTIAN ,  WEIGUNY JENS ,  TENTEN ANDREAS

IPC: B01J27/198 ,  B01J37/16 ,  C07C51/215 ,  C07F11/00 ,  B01J31/12 ,  C07D307/60

Abstract: The invention relates to a method for producing a catalyst precursor containing vanadium, phosphorus and oxygen, for producing maleic acid anhydride by heterogeneously catalytic gas phase oxidation of a hydrocarbon with at least four carbon atoms, by reacting a pentavalent vanadium compound with a pentavalent phosphorus compound in the presence of an alcohol with a reducing action. According to the inventive method, (i) the alcohol with the reducing action is an alcohol of general formula (I), wherein the radicals R1 and R2, independently of each other, mean hydrogen, C1-to C9-alkyl or C1- to C9-hydroxyalkyl and the radical R3 means C1-to C9-alkyl or C1- to C9-hydroxyalkyl; (ii) the reaction is carried out without adding modifiers and co-reduction agents selected from the following series: hydrogen halide, sulphur dioxide, fuming sulphuric acid and tensides; and (iii) bringing together the pentavalent vanadium compound, the pentavalent phosphorus compound and the alcohol with the reducing action, forming the catalyst precursor by heating and isolating the same. The invention also relates to a catalyst precursor that can be obtained using this method, to a method for producing a catalyst from the catalyst precursor, to a catalyst that can be obtained using this method and to a method for producing maleic acid anhydride on this catalyst.

公开(公告)号：AU5036301A

公开(公告)日：2001-09-24

申请号：AU5036301

申请日：2001-03-06

Applicant: BASF AG

Inventor： WEIGUNY JENS ,  STORCK SEBASTIAN ,  TENTEN ANDREAS ,  RUPPEL WILHELM

IPC: C07D307/60 ,  B01J27/28 ,  B01J38/04 ,  C07B61/00 ,  C07C51/215

Abstract: 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.