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    42.
    发明专利
    未知

    公开(公告)号：DE102005061382A1

    公开(公告)日：2007-06-28

    申请号：DE102005061382

    申请日：2005-12-21

    Applicant: BASF AG

    Inventor： NETO SAMUEL ,  HIBST HARTMUT ,  ROSOWSKI FRANK ,  STORCK SEBASTIAN ,  ZUEHLKE JUERGEN

    IPC: B01J37/08 ,  B01J23/68

    Abstract: A process is described for converting a precatalyst which comprises an inert support, an organic carbon source and a multimetal oxide comprising silver and vanadium to a gas phase oxidation catalyst which comprises the inert support and a catalytically active silver vanadium oxide bronze, by treating the precatalyst thermally at a temperature of at least 350° C. in a gas atmosphere which comprises less than 10% by volume of oxygen, wherein, before the thermal treatment, the amount of the carbon source in the precatalyst is adjusted to a value below a critical amount The carbon content is reduced by burning-off at a temperature of from 80 to 200° C. in an oxygenous atmosphere with decomposition of a portion of the carbon source. The catalysts obtained serve for the gas phase partial oxidation of aromatic hydrocarbons to aldehydes, carboxylic acids and/or carboxylic anhydrides.

    PROCEDIMIENTO PARA LA OBTENCION DE ANHIDRIDO DEL ACIDO FTALICO.
    44.
    发明专利
    PROCEDIMIENTO PARA LA OBTENCION DE ANHIDRIDO DEL ACIDO FTALICO. 未知

    公开(公告)号：ES2271890T3

    公开(公告)日：2007-04-16

    申请号：ES04733248

    申请日：2004-05-15

    Applicant: BASF AG

    Inventor： NETO SAMUEL ,  ZUHLKE JURGEN ,  STORCK SEBASTIAN ,  ROSOWSKI FRANK

    IPC: C07C51/21 ,  C07C51/31 ,  C07C51/265 ,  C07D307/89

    Abstract: Procedimiento para la obtención de anhídrido del ácido ftálico mediante oxidación catalítica en fase gaseosa de xileno y/o de naftalina con un gas que contenga oxígeno molecular en un lecho fijo y por medio de catalizadores dispuestos al menos en tres capas superpuestas, cuya actividad aumenta de una capa a otra desde el lado de entrada de los gases hasta el lado de salida de los gases, sobre cuyo núcleo formado por material de soporte se ha dispuesto una capa de óxidos metálicos catalíticamente activos, caracterizado porque únicamente presenta fósforo la última capa del catalizador, presentándose en la última capa, al menos un 10 % en peso de vanadio (calculado como V2O5) referido a la masa activa del catalizador y presentando la proporción entre vanadio (calculado como V2O5) y fósforo un valor mayor que 35.

    47.
    发明专利
    未知

    公开(公告)号：DE102004028930A1

    公开(公告)日：2006-01-05

    申请号：DE102004028930

    申请日：2004-06-15

    Applicant: BASF AG

    Inventor： NETO SAMUEL ,  HIBST HARTMUT ,  ROSOWSKI FRANK ,  STORCK SEBASTIAN ,  ZUEHLKE JUERGEN

    IPC: B01J23/00 ,  B01J23/68 ,  B01J27/198 ,  C01G1/02 ,  C01G5/00 ,  C01G31/00 ,  C01G31/02

    Abstract: Multimetal oxides corresponding to the general formula (I), processes for their preparation, precatalysts containing such oxides and catalysts made therefrom for gas phase partial oxidation of hydrocarbons: Ag a-c Q b M c V 12 O d .eH 2 O (I) wherein a represents a number having a value of 5 to 9; Q represents an element selected from the group consisting of P, As, Sb, Bi and mixtures thereof; b represents a number having a value of 0.2 to 3; M represents a metal selected from the group consisting of Li, Na, K, Rb, Cs, Tl, Mg, Ca, Sr, Ba, Cu, Zn, Cd, Pb, Cr, Au, Al, Fe, Co, Ni, Ce, Mn, Nb, W, Ta, Mo and mixtures thereof; c represents a number having a value of less than 1; d represents a number having a value of which is determined by the valency and frequency of Ag, Q, M and V in the formula (I); and e represents a number having a value of 0 to 20; wherein the multimetal oxide has a crystal structure wherein its powder X-ray diffractogram includes reflections at at least 5 interplanar spacings selected from the group of 7.13 Å, 5.52 Å, 5.14 Å, 3.57 Å, 3.25 Å, 2.83 Å, 2.79 Å, 2.73 Å, 2.23 Å and 1.71 Å, each interplanar spacing value±0.04 Å.

    Preparation of (meth)acrylic acid useful for preparation of polymers involves heterogeneously catalyzed gas phase partial oxidation of saturated hydrocarbon precursor at elevated temperature over catalyst beds
    49.
    发明专利
    Preparation of (meth)acrylic acid useful for preparation of polymers involves heterogeneously catalyzed gas phase partial oxidation of saturated hydrocarbon precursor at elevated temperature over catalyst beds 未知

    公开(公告)号：DE10344264A1

    公开(公告)日：2005-04-21

    申请号：DE10344264

    申请日：2003-09-23

    Applicant: BASF AG

    Inventor： BORGMEIER FRIEDER ,  ROSOWSKI FRANK ,  LINTZ HANS-GUENTHER ,  GRISSTEDE INA

    IPC: C07C51/215 ,  C07C57/05 ,  B01J23/31

    Abstract: Preparation of (meth)acrylic acid involves heterogeneously catalyzed gas phase partial oxidation of at least one saturated hydrocarbon precursor compound (C1) at elevated temperature by conducting a starting reaction gas mixture comprising (C1), molecular oxygen, and at least one inert gas through at least one catalyst bed (I). The oxidation reaction in catalyst bed (I) is interrupted at least once by continuing in a catalyst bed (II). Preparation of (meth)acrylic acid involves heterogeneously catalyzed gas phase partial oxidation of at least one saturated hydrocarbon precursor compound (C1) at elevated temperature by conducting a starting reaction gas mixture comprising (C1), molecular oxygen, and at least one inert gas through at least one catalyst bed (I), whose catalysts (I) have active composition containing at least one multimetal oxide (I) which contains the elements Mo and V, at least one element from Te and Sb, and at least one element selected from Nb, Ta, W, Ce or Ti; and whose X-ray diffractogram (I) is as given in the specification. The gas phase partial oxidation of the reaction gas mixture over the catalysts (I) in at least one catalyst bed (I) is interrupted at least once by continuing the gas phase partial oxidation in at least one catalyst bed (II), whose catalysts (II) have their active composition containing at least one multimetal oxide (II), and whose X-ray diffractogram (II) is different from the X-ray diffractogram (I) and has a stoichiometry of general formula: Mo12BiaFeb(X1>)c(X2>)d(X3>)e(X4>)fOn, (A); or a general formula: [(Y1>)a'(Y2>)b'Ox]p[(Y3>)c'(Y4>)d'(Y5>)e'(Y6>)f'(Y7>)g'(Y2>)h'Oy]q, (B). X1>nickel and/or cobalt; X2>thallium, alkali metal and/or alkaline earth metal; X3>zinc, phosphorus, arsenic, boron, antimony, tin, cerium, lead and/or tungsten; X4>silicon, aluminum, titanium and/or zirconium; a : 0.2 - 5; b : 0.01 - 5; c and f : 0 - 10; d : 0 - 2; e : 0 - 8; n : number determined by the valency and frequency of the elements in formula (A) other than oxygen; Y1>only bismuth or bismuth and at least one of tellurium, antimony, tin or copper; Y2>molybdenum and/or tungsten; Y3>alkali metal, thallium and/or samarium; Y4>alkaline earth metal, nickel, cobalt, copper, manganese, zinc, tin, cadmium and/or mercury; Y5>iron, or iron and at least one element from vanadium, chromium, and cerium; Y6>phosphorus, arsenic, boron and/or antimony; Y7>a rare earth metal, titanium, zirconium, niobium, tantalum, rhenium, ruthenium, rhodium, silver, gold, aluminum, gallium, indium, silicon, germanium, lead, thorium and/or uranium; a' : 0.01 - 8; b' : 0.1 - 30; c' : 0 - 4; d' : 0 - 20; e' : greater than 0 - 20; f' : 0 - 6; g' : 0 - 15; h' : 8 - 16; x and y : numbers determined by the valency and frequency of the elements other than oxygen in formula (B); and p and q : numbers whose p/q ratio is 0.1 - 10.

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