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    MANUFACTURE OF PHTHALIC ANHYDRIDE FROM O-XYLENE OR NAPHTHALENE
    11.
    发明专利
    MANUFACTURE OF PHTHALIC ANHYDRIDE FROM O-XYLENE OR NAPHTHALENE 未知

    公开(公告)号：CA1053248A

    公开(公告)日：1979-04-24

    申请号：CA262962

    申请日：1976-10-07

    Applicant: BASF AG

    Inventor： BLECHSCHMITT KURT ,  REUTER PETER ,  WIRTH FRIEDRICH ,  HORNBERGER PAUL

    IPC: C07D307/89 ,  B01J23/00 ,  B01J27/00 ,  C07C51/265 ,  C07C51/31

    Abstract: A process for the manufacture of phthalic anhydride by oxidizing o-xylene and/or naphthalene over a supported catalyst containing vanadium pentoxide and titanium dioxide, at from 350.degree. to 500.degree.C, in which the o-xylene or naphthalene is passed, with an oxygen-containing carrier gas, over the catalyst, and in which the catalyst in the first 25-50 per cent by volume of the total catalyst volume, in the direction of flow of the mixture of .alpha.-xylene or naphthalene and carrier gas, containe from 0.001 to 0.3 per cent by weight, based on titanium dioxide, of rubidium, but no phosphorus, in the active composition, whilst the remainder of the catalyst contains from 0.02 to 0.8 per cent by weight, based on titanium dioxide, of phosphorus, but no rubidium, in the active composition.

    SUPPORTED CATALYST CONTAINING VANADIUM PENTOXIDE AND ZIRCONIUM DIOXIDE
    12.
    发明专利
    SUPPORTED CATALYST CONTAINING VANADIUM PENTOXIDE AND ZIRCONIUM DIOXIDE 未知

    公开(公告)号：CA981655A

    公开(公告)日：1976-01-13

    申请号：CA157709

    申请日：1972-11-28

    Applicant: BASF AG

    Inventor： REUTER PETER ,  FRIEDRICHSEN WILHELM

    IPC: C07D307/89 ,  B01J23/22 ,  B01J27/188 ,  B01J27/198 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31

    Abstract: 1402629 Oxidisation catalysts BADISCHE ANILIN- & SODA-FABRIK AG 30 Nov 1972 [1 Dec 1971 10 Jan 1972] 55268/72 Heading B1E [Also in Division C2] Supported catalysts comprise an inert carrier coated with a layer of active composition comprising 1-30 wt % V 2 O 5 , 99-40 wt % ZrO 2 having an internal surface area of 2-25 m 2 /g and 0-59 wt % TiO 2 based on the active composition, the V 2 O 5 content being 0.05-3 wt % based on the whole supported catalyst. The carrier, if porous, may be primed with an oxide of Al, Mo, Cr, W, Fe or Co and the active composition may also contain P 2 O 5 and/or an oxide of Li, Al, Sn, Hf, Nb, Cr, Mo or W.

    MULTI-TUBE FIXED-BED REACTOR, ESPECIALLY FOR CATALYTIC GAS PHASE REACTIONS
    13.
    发明专利
    MULTI-TUBE FIXED-BED REACTOR, ESPECIALLY FOR CATALYTIC GAS PHASE REACTIONS 未知

    公开(公告)号：MY125244A

    公开(公告)日：2006-07-31

    申请号：MYPI20001007

    申请日：2000-03-14

    Applicant: BASF AG

    Inventor： CORR FRANZ ,  OLBERT GERHARD ,  REUTER PETER ,  WAMBACH LUDWIG ,  HAMMOM ULRICH

    IPC: B01J19/00 ,  B01J8/06 ,  B01J19/24 ,  C07C45/35 ,  C07C45/38 ,  H01Q21/08

    Abstract: THE PRESENT INVENTION RELATES TO MULTITUBE REACTOR AND THE USE OF SUCH A REACTOR FOR CARRYING OUT CATALYTIC GAS-PHASE REACTIONS, IN PARTICULAR FOR CARRYING OUT EXOTHERMIC AND ENDOTHERMIC CATALYTIC GAS-PHASE REACTIONS SUCH AS THE PREPARATION OF PHTHALIC ANYHYDRIDE (PA), ACRYLIC ACID, METHACRYLIC ACID (MAA), ACROLEIN, MAEIC ANHYDRIDE (MA), GLYOXAL, PHOSGENE, HYDROCYANIC ACID OR VINYL FORMAMIDE (VFA). IN A RELATIVELY LARGE MULTITUBE REACTOR IN WHICH A LARGE AMOUNT OF HEAT OF REACTION IS GENERATE OWING TO THE NUMEROUS CATALYST TUBES (17) AND HAS TO BE REMOVED, IT IS PROPOSED THAT THE RATIO OF TUBE SPACING t TO EXTERNAL TUBE DIAMETER da BE MADE DEPENDENT ON THE REACTOR DIAMETER OR ON THE EXTERNAL TUBE BUNDLE DIAMETER dRBa. AT THE EXTERNAL DIAMETER OF THE CATALYST TUBE BUNDLE (18) OF MORE THAN 4 METERS, A RATIO OF TUBE SPACING d TO EXTERNAL TUBE DIAMETER da OF AT LEAST 1.3 IS PREFER-RED.(FIGURE 3)

    14.
    发明专利
    未知

    公开(公告)号：DE50004079D1

    公开(公告)日：2003-11-20

    申请号：DE50004079

    申请日：2000-03-15

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  CORR FRANZ ,  REUTER PETER ,  WAMBACH LUDWIG ,  HAMMON ULRICH

    IPC: B01J8/06 ,  B01J19/00 ,  B01J19/24 ,  C07C45/35 ,  C07C45/38 ,  H01Q21/08

    Abstract: A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, methacrylic acid (MAA), acrolein, maleic anhydride (MA), glyoxal, phosgene, hydrocyanic acid or vinyl formamide (VFA). In a relatively large multitube reactor in which a large amount of heat of reaction is generated owing to the numerous catalyst tubes ( 17 ) and has to be removed, it is proposed that the ratio of tube spacing t to external tube diameter d a be made dependent on the reactor diameter or on the external tube bundle diameter d RBa . At an external diameter of the catalyst tube bundle ( 18 ) of more than 4 meters, a ratio of tube spacing d to external tube diameter d a of at least 1.3 is preferred.

    Multi-tube fixed-bed reactor, especially for catalytic gas phase reactions
    16.
    发明专利
    Multi-tube fixed-bed reactor, especially for catalytic gas phase reactions 未知

    公开(公告)号：MXPA01009012A

    公开(公告)日：2002-01-01

    申请号：MXPA01009012

    申请日：2001-09-06

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  CORR FRANZ ,  REUTER PETER ,  WAMBACH LUDWIG ,  HAMMON ULRICH

    IPC: B01J8/06 ,  B01J19/00 ,  B01J19/24 ,  C07C45/35 ,  C07C45/38 ,  H01Q21/08

    Abstract: A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, methacrylic acid (MAA), acrolein, maleic anhydride (MA), glyoxal, phosgene, hydrocyanic acid or vinyl formamide (VFA). In a relatively large multitube reactor in which a large amount of heat of reaction is generated owing to the numerous catalyst tubes ( 17 ) and has to be removed, it is proposed that the ratio of tube spacing t to external tube diameter d a be made dependent on the reactor diameter or on the external tube bundle diameter d RBa . At an external diameter of the catalyst tube bundle ( 18 ) of more than 4 meters, a ratio of tube spacing d to external tube diameter d a of at least 1.3 is preferred.

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