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    61.
    发明专利
    未知

    公开(公告)号：DE19824532A1

    公开(公告)日：1999-12-09

    申请号：DE19824532

    申请日：1998-06-03

    Applicant: BASF AG

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

    IPC: B01J23/22 ,  B01J27/198 ,  B01J37/02 ,  C07C51/265 ,  C07C51/31 ,  C07C63/16 ,  B01J31/06 ,  C07C51/215 ,  C07C51/255 ,  C07D307/89

    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 DEG C. The aqueous active mass suspension contains 1 to 10 wt. %, with regard to the solid content of the active mass suspension, of 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.

    PUMP FOR TRANSPORTING A HEAT EXCHANGE MEDIUM FOR A MULTI-TUBE REACTOR
    62.
    发明专利
    PUMP FOR TRANSPORTING A HEAT EXCHANGE MEDIUM FOR A MULTI-TUBE REACTOR 未知

    公开(公告)号：CA2448082C

    公开(公告)日：2010-10-05

    申请号：CA2448082

    申请日：2002-06-05

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  MATTKE TORSTEN ,  KUMMER MATTHIAS ,  RUEHL THOMAS ,  ROSOWSKI FRANK

    IPC: F04D7/06 ,  F04D29/40 ,  F04D3/00 ,  F04D13/00 ,  F04D29/52

    Abstract: The invention relates to a pump (1) comprising a pump feed tube (13) for transporting a heat exchange medium (6) for a reactor containing a bundle of catalyst tubes (2). The pump (1) has a housing (14) that surrounds the pump feed tube (13) and comprises an opening (15) in the lower part of the housing (14), which allows the heat exchange medium (6) that is drawn from the lower section of the reactor by the pump (1) to flow into the housing (14). The medium flows upwards in the section lying between the internal wall of the housing (14) and the external wall of the pump feed tube (13), optionally over a heat exchanger (18) and into the interior of the pump feed tube (13) via an opening (16) in the upper section of said pump feed tube (13). The medium then flows through the pump feed tube from top to bottom, into the reactor via an opening (17) in the lower section of said tube (13) and into the upper section of the intermediate chamber between the catalyst tubes (2).

    65.
    发明专利
    未知

    公开(公告)号：BRPI0511970A

    公开(公告)日：2008-01-22

    申请号：BRPI0511970

    申请日：2005-06-14

    Applicant: BASF AG

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

    IPC: C01G31/00 ,  B01J23/00 ,  B01J23/68 ,  B01J27/198

    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.

    METHOD FOR PRODUCING PHTHALIC ANHYDRIDE
    66.
    发明专利
    METHOD FOR PRODUCING PHTHALIC ANHYDRIDE 未知

    公开(公告)号：UA80765C2

    公开(公告)日：2007-10-25

    申请号：UAA200512406

    申请日：2004-05-15

    Applicant: BASF AG

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

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

    Abstract: The invention relates to a method for producing phthalic anhydride during which the catalytic gas phase oxidation of o-xylol and/or naphthalene is carried out over at least three layers of catalysts of increasing activity, whereby only the last layer of the catalyst system contains phosphorous, and the last layer contains at least 10% by weight of vanadium (expressed as V2O5) with regard to the active mass of the catalyst and has a ratio of vanadium (expressed as V2O5) to phosphorous of greater than 35.

    69.
    发明专利
    未知

    公开(公告)号：DE502004003631D1

    公开(公告)日：2007-06-06

    申请号：DE502004003631

    申请日：2004-07-30

    Applicant: BASF AG

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

    IPC: B01J31/06 ,  B01J21/06 ,  B01J23/22 ,  B01J27/198 ,  B01J37/02 ,  C07C51/215 ,  C07C51/265

    Abstract: A catalyst for gas-phase oxidations which comprises an inert support and a catalytically active composition comprising transition metal oxides applied thereto, or a precatalyst, is described. The (pre)catalyst is obtained by treating the inert support with an aqueous suspension or solution of the transition metal oxides or their precursor compounds, where the suspension contains a binder dispersion and the binder is a copolymer of an alpha-olefin and a vinyl-C 2 -C 4 -carboxylate whose vinyl C 2 -C 4 -carboxylate content is at least 62 mol %.

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