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    Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid, used to produce polymers for adhesives, involves using active multimetal oxide material containing e.g. molybdenum and vanadium
    71.
    发明专利
    Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid, used to produce polymers for adhesives, involves using active multimetal oxide material containing e.g. molybdenum and vanadium 未知

    公开(公告)号：DE10246119A1

    公开(公告)日：2004-04-15

    申请号：DE10246119

    申请日：2002-10-01

    Applicant: BASF AG

    Inventor： HECHLER CLAUS ,  SCHINDLER GOETZ-PETER ,  PETZOLDT JOCHEN ,  ADAMI CHRISTOPH ,  MACHHAMMER OTTO ,  MUELLER-ENGEL KLAUS JOACHIM ,  MARTAN HANS

    IPC: C07C47/22 ,  C07C57/04 ,  C07C253/18 ,  C07C255/08 ,  C07D301/08 ,  C07D303/04

    Abstract: A heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a catalytically active multimetal oxide material which contains the elements molybdenum and vanadium, tellurium or antimony, and elements consisting of niobium, tantalum, tungsten or titanium, whose X-ray diffraction pattern has no reflections with the peak position 2 theta = 50 +/- 0.30 but has reflections whose peaks are at specified diffraction angles. Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a catalytically active multimetal oxide material which contains the elements molybdenum and vanadium, tellurium or antimony, and elements consisting of niobium, tantalum, tungsten or titanium, whose X-ray diffraction pattern has no reflections with the peak position 2 theta = 50 +/- 0.30 but has reflections h, i and k whose peaks are at the diffraction angles (2 theta) 22.2 +/- 0.5 degrees (h), 27.3 +/- 0.50 (i) and 28.2 +/- 0.50 (k). The reflection (h ) is the one with the strongest intensity within the X-ray diffraction pattern and having a full width at half height of not more than 0.50; the intensity (Pi) of the reflection (i) and the intensity (Pk) of the reflection (k) fulfill the relationship that R is 0.65-0.85, where R is the intensity ratio defined by the formula R = Pi/(Pi + Pk); and the full width at half height of the reflection (i) and of the reflection (k) is in each case at most 10. The catalytically active multimetal oxide material is of formula (I). Mo1VaM1bM2cM3dOn (I). M1 = element(s) from the group consisting of Te and Sb; M2 = element(s) from the group consisting of Nb, Ti, W, Ta and Ce; M3 = element(s) consisting of Pb, Ni, Co, Bi, Pd, Ag, Pt, Cu, Au, Ga, Zn, Sn, In, Re, Ir, Sm, Sc, Y, Pr, Nd or Tb; a = 0.01-1; b = 0-1; c = 0-1; d = 0-0.5; n = number that is determined by the valency and frequency of the elements other than oxygen in formula (I).

    METHOD FOR THE PRODUCTION OF BUTADIENE FROM N-BUTANE
    72.
    发明专利
    METHOD FOR THE PRODUCTION OF BUTADIENE FROM N-BUTANE 未知

    公开(公告)号：CA2493133A1

    公开(公告)日：2004-01-22

    申请号：CA2493133

    申请日：2003-07-10

    Applicant: BASF AG

    Inventor： HARTH KLAUS ,  HIBST HARTMUT ,  WALSDORFF CHRISTIAN ,  SCHINDLER GOETZ-PETER

    IPC: B01J23/62 ,  C07B61/00 ,  C07C5/333 ,  C07C11/167

    Abstract: The invention relates to a method for the production of butadiene from n- butane comprising the steps: (a) preparation of a gas feedstream containing n- butane, (b) feeding the gas feedstream containing n-butane into a first dehydrogenation zone with non-oxidative catalytic dehydrogenation of n-butan e to give 1-butene, 2-butene and optionally butadiene, whereby a first gas product stream comprising n-butane, 1-butene, 2-butene, optionally butadiene and optionally by-products is obtained, (c) feeding the first gas product stream comprising n-butane, 1-butene, 2-butene, optionally butadiene and optionally by-products into a second dehydrogenation zone with oxidative dehydrogenation of 1-butene and 2- butene to give butadiene, whereby a secon d gas product stream is obtained comprising butadiene, n-butane, steam and optionally by-products and (d) recovery of butadiene from the second gas product stream.

    73.
    发明专利
    未知

    公开(公告)号：DE10219879A1

    公开(公告)日：2003-11-20

    申请号：DE10219879

    申请日：2002-05-03

    Applicant: BASF AG

    Inventor： HOFSTADT OTTO ,  HESSE MICHAEL ,  SCHINDLER GOETZ-PETER ,  HARTH KLAUS ,  SIMON FALK

    IPC: B01J23/62 ,  B01J21/06 ,  B01J23/63 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  C07B61/00 ,  C07C5/333 ,  C07C11/06 ,  B01J23/00

    Abstract: The invention relates to a process for preparing a catalyst support, in which zirconium dioxide powder is mixed with a binder, if desired a pore former, if desired an acid, water and, if desired, further additives to give a kneadable composition and the composition is homogenized, shaped to produce shaped bodies, dried and calcined, wherein the binder is a monomeric, oligomeric or polymeric organosilicon compound. Suitable binders are monomeric, oligomeric or polymeric silanes, alkoxysilanes, aryloxysilanes, acryloxysilanes, oximinosilanes, halosilanes, aminoxysilanes, aminosilanes, amidosilanes, silazanes or silicones. The invention also provides the catalyst support which has been prepared in this way, a catalyst comprising the support and its use as dehydrogenation catalyst.

    Regeneration of a dehydrogenation catalyst
    78.
    发明专利
    Regeneration of a dehydrogenation catalyst 未知

    公开(公告)号：AU3453602A

    公开(公告)日：2002-06-18

    申请号：AU3453602

    申请日：2001-12-03

    Applicant: BASF AG

    Inventor： SCHINDLER GOETZ-PETER ,  MAGIN WERNER ,  HARTH KLAUS

    IPC: B01J38/14 ,  B01J23/62 ,  B01J23/90 ,  B01J23/96 ,  B01J38/12 ,  B01J38/18 ,  B01J23/00

    Abstract: A process for regenerating a dehydrogenation catalyst comprises the steps (a)-(f): (a) flushing with inert gas at a pressure of from 0.5 to 2.0 bar and a gas hourly velocity of from 1000 to 50 000 h -1 ; (b) passing an oxygen-containing gas mixture comprising an inert gas through the catalyst at a pressure of from 2 to 20 bar and a gas hourly velocity of from 1000 to 50 000 h -1 for from 0.25 to 24 hours while increasing the oxygen concentration stepwise or continuously from an initial value of from 0.01 to 1% by volume of O 2 to a final value of from 10 to 25% by volume of O 2 ; (c) optionally passing an oxygen-containing gas mixture comprising an inert gas through the catalyst at a pressure of from 0.5 to 20 bar and a gas hourly velocity of from 10 to 500 h -1 for from 0.25 to 100 h, with the oxygen concentration being from 10 to 25% by volume of O 2 ; (d) optionally changing the pressure repeatedly, rapidly and in opposite directions by a factor of from 2 to 20 within the range from 0.5 to 20 bar; (e) flushing with an inert gas; (f) activating the catalyst by means of hydrogen; where at least one of the steps (c) or (d) is carried out and the entire regeneration process is carried out at from 300 to 800° C.

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