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    91.
    发明专利
    未知

    公开(公告)号：DE59905354D1

    公开(公告)日：2003-06-05

    申请号：DE59905354

    申请日：1999-08-17

    Applicant: BASF AG

    Inventor： HEIDEMANN THOMAS ,  BAUER STEFAN ,  LINDEN GERD ,  PETERSEN HERMANN

    IPC: B01J23/22 ,  B01J27/198 ,  B01J37/02 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31 ,  C07D307/89

    Abstract: A coated catalyst for the catalytic gas-phase oxidation of aromatic hydrocarbons comprises, on an inert nonporous support, a catalytically active composition comprising a defined amount of vanadium oxide, titanium dioxide, a cesium compound, a phosphorus compound, and antimony oxide, wherein the catalytically active composition is applied in two or more layers and where relative to the inner layer or inner layers the outer layer has an antimony oxide content which is from 50 to 100% lower and wherein the amount of catalytically active composition of the inner layer or layers is from 10 to 90% by weight of the amount of catalytically active composition, and can be used for preparing carboxylic acids and/or anhydrides, in particular phthalic anhydride; also specified is a production process for such catalysts.

    92.
    发明专利
    未知

    公开(公告)号：DE59808069D1

    公开(公告)日：2003-05-28

    申请号：DE59808069

    申请日：1998-02-12

    Applicant: BASF AG

    Inventor： HEIDEMANN THOMAS ,  CIMNIAK THOMAS ,  ULRICH BERNHARD

    IPC: B01J21/06 ,  B01J23/22 ,  B01J37/02 ,  C07C51/255 ,  C07C51/265 ,  C07C51/31 ,  C07C63/16

    Abstract: The invention relates to a method for producing gas-phase catalysts gas-phase oxidation of aromatic hydrocarbons into carboxylic acids and/or carboxylic acid anhydrides upon whose carrier material a coating containing catalytically active metal oxide is applied in the form of a shell, wherein a powder is initially produced from a solution and/or suspension of catalytically active metal oxides and the precursor compounds thereof or simply the precursor compounds in the presence or absence of auxiliary agents in order to produce the catalyst. Said powder is then applied, in the form of a shell, to the carrier in the presence or absence of auxiliary agents after or without previous conditioning and without previous thermal treatment to produce the catalyst. The carrier which is thus coated undergoes thermal treatment in order to produce catalytically active metal oxides.

    Production of hydroxyalkyl carboxylate ester for use, e.g. as raw material for varnish, involves reacting carboxylic acid, e.g. acrylic acid, with alkylene oxide in presence of iron-containing multi-metal cyanide catalyst
    93.
    发明专利
    Production of hydroxyalkyl carboxylate ester for use, e.g. as raw material for varnish, involves reacting carboxylic acid, e.g. acrylic acid, with alkylene oxide in presence of iron-containing multi-metal cyanide catalyst 未知

    公开(公告)号：DE10154781A1

    公开(公告)日：2003-05-22

    申请号：DE10154781

    申请日：2001-11-08

    Applicant: BASF AG

    Inventor： GROSCH GEORG HEINRICH ,  HEIDEMANN THOMAS ,  SIGL MARCUS ,  WUERZ HARALD ,  CORELL RAINER

    IPC: C07C67/26 ,  C09D4/02 ,  B01J27/26 ,  C07C69/54

    Abstract: Special multi-metal cyanide compounds in which at least one of the metals is iron(II) or iron(III) (other than the usual alkali or alkaline earth metal or quaternary ammonium ion) are used as catalysts in a method for the production of hydroxyalkyl esters by reacting carboxylic acids with alkylene oxides. A method for the production of hydroxyalkyl esters of carboxylic acids involves reacting carboxylic acids with alkylene oxides in presence of multi-metal cyanide catalysts of formula (I); M zM a(M (CN)b(A)c)d.fM gXn.mM pYq.h(H2O).eL.kP (I); M = metal ion(s) selected from Zn , Fe , Fe , Co , Ni , Mn , Co , Sn , Pb , Mo , Mo , Al , V , V , Sr , W , W , Cr , Cr , Cd , Hg , Pd , Pt , V , Mg , Ca , Ba and Cu ; M = metal ion(s) selected from Fe , Fe , Co , Co , Mn , Mn , V , V , Cr , Cr , Rh , Ru and Ir , where M and M may be the same or different and at least one of these is Fe or Fe ; M = metal ion(s) selected from Li , Na , K , Rb , Cs , Mg , Ca , Sr and Ba or ammonium ions of formula R R R R N ; R -R = 1-6C hydrocarbyl A, X, Y = halide, hydroxide, sulfate, carbonate, cyanide, thiocyanate, isocyanate, cyanate, carboxylate, oxalate, nitrate, nitrosyl, hydrogen sulfate, phosphate, dihydrogen phosphate, hydrogen phosphate or hydrogen carbonate ions; L = a water-miscible ligand selected from alcohols, aldehydes, ketones, polyethers, esters, polyesters, polycarbonate, ureas, amides, prim., sec. and tert. amines, ligands with pyridine nitrogen, nitriles, sulfides, phosphides, phosphites, phosphanes, phosphonates and phosphates; e, f, k, h, m = 0 or more (fraction or integer); P = an organic additive; a, b, c, d, g, n, p, q, z = numbers compatible with the electroneutrality of (I), where c or z or c and z may be zero.

    94.
    发明专利
    未知

    公开(公告)号：DE59904964D1

    公开(公告)日：2003-05-15

    申请号：DE59904964

    申请日：1999-05-10

    Applicant: BASF AG

    Inventor： HEIDEMANN THOMAS ,  WANJEK HERBERT

    IPC: B01J27/198 ,  B01J35/00 ,  B01J37/02 ,  C07D307/89

    Abstract: Phthalic anhydride is prepared by catalytic gas-phase oxidation of xylene and/or naphthalene by a gas comprising molecular oxygen in a fixed bed at elevated temperature and using at least three coated catalysts arranged in superposed zones, which catalysts have a layer of catalytically active metal oxides applied to a core of support material. In the process described, the catalyst activity rises from zone to zone from the gas inlet end to the gas outlet end and the activity of the catalysts of the individual zones is set such that the least active catalyst comprises a lower amount of active composition and, if desired, additionally more alkali metal selected from the group consisting of potassium, rubidium and cesium as dopant than the catalyst of the next zone and the subsequent even more active catalyst comprises the same amount of active composition and even less alkali metal as dopant or a greater amount of active composition and, if desired, less alkali metal as dopant than the catalyst of the second zone, with further conditions.

    96.
    发明专利
    未知

    公开(公告)号：DE59902418D1

    公开(公告)日：2002-09-26

    申请号：DE59902418

    申请日：1999-06-02

    Applicant: BASF AG

    Inventor： HEIDEMANN THOMAS ,  ROSOWSKI FRANK ,  LINDEN GERD ,  SEUFERT MICHAEL ,  HEFELE GERHARD ,  LORZ MICHAEL

    IPC: B01J23/22 ,  B01J27/198 ,  B01J37/02 ,  C07C51/265 ,  C07C51/31 ,  C07C63/16

    Abstract: The invention relates to a method for producing shell catalysts for the catalytic vapor-phase oxidation of aromatic carboxylic acids and/or carboxylic acid anhydrides comprised of a supporting core and of catalytically active metal oxides which are deposited in a shell-shaped manner on said supporting core. The inventive catalysts are obtained by spraying an aqueous active mass suspension, said suspension containing the active metal oxides, at higher temperatures onto the hot supporting material which has a temperature ranging from 50 to 450° C. The aqueous active mass suspension contains 1 to 10 wt. %, with regard to the solid content of the active mass suspension, a binding agent comprised of A) a polymerizate obtained by radical polymerization, containing 5 to 100 wt. % of monomers (a) in the form of ethylenically unsaturated acid anhydrides or ethylenically unsaturated dicarboxylic acids whose carboxyl groups can form an anhydride and containing 0 to 95 wt. % monoethylenically unsaturated monomers (b) with the provision that the monomers (a) and (b) comprise, on average, a maximum of 6 carbon atoms which are not functionalized with groups containing oxygen, and of B) an alkanolamine having at least 2 OH groups, a maximum of 2 nitrogen atoms and a maximum of 8 C-atoms, whereby the weight ratio A:B ranges from 1:0.05 to 1:1.

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