33.
    发明专利
    未知

    公开(公告)号:DE19959974A1

    公开(公告)日:2001-06-21

    申请号:DE19959974

    申请日:1999-12-13

    Applicant: BASF AG

    Abstract: The invention relates to a method for combinatorially producing a library of materials by means of an electrochemical deposition in an array. The inventive library is made from an array of containers that consist of an electroconductive material, are open to the top and are electroconductively connected to a shared current supply device and is made from a corresponding array of auxiliary electrodes that are electroconductively connected to a shared current supply device and are arranged in such a way that an auxiliary electrode plunges into a container respectively or can be introduced therein without touching said container. The inventive method comprises the following steps: filling the containers with electrolytes having different compositions and containing electrolytically separable elements and applying an electric voltage between the current supply devices of the containers and auxiliary electrodes for obtaining an electrolytic deposition on the surfaces of the containers.

    34.
    发明专利
    未知

    公开(公告)号:NO20012273D0

    公开(公告)日:2001-05-09

    申请号:NO20012273

    申请日:2001-05-09

    Applicant: BASF AG

    Abstract: A multimetal oxide of the formula I Aga-bMbV2Ox*cH2O,  I where M is 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 and/or Mo, a is from 0.3 to 1.9 and b is from 0 to 0.5, with the proviso that the difference (a−b)≧0.1 and c is from 0 to 20 and x is a number determined by the valence and amount of elements different from oxygen in the formula I, which has a crystal structure giving an X-ray powder diffraction pattern which displays reflections at the lattice spacings d of 15.23±0.6, 12.16±0.4, 10.68±0.3, 3.41±0.04, 3.09±0.04, 3.02±0.04, 2.36±0.04 and 1.80±0.04 Å. Precatalysts and catalysts produced therefrom for the partial oxidation of aromatic hydrocarbons are also provided.

    Multimetal oxide composition, useful as oxidation catalyst, especially for gas phase production of (meth)acrylic acid, comprises crystallites of constant composition

    公开(公告)号:DE19922113A1

    公开(公告)日:2000-08-10

    申请号:DE19922113

    申请日:1999-05-12

    Applicant: BASF AG

    Abstract: Multimetal oxide composition is a multimetal oxide (I) of molybdenum with vanadium, niobium, tantalum, tungsten and/or rhenium and boron, silicon, phosphorus, germanium, arsenic and/or antimony and optionally other metal(s) in the form of crystallites of constant composition. Multimetal oxide composition is of formula (I); (A)p(B)q (I) Mo12X aX bX cX dX eOx (II) MofX gX hOy (III) A = a multimetal oxide of formula (II); B = a multimetal oxide of formula (III); X = hydrogen, up to 97 mole-% of which may be replaced by ammonium, potassium, rubidium and/or cesium; X = vanadium, niobium (Nb), tantalum (Ta), tungsten and/or rhenium; X = boron, silicon, phosphorus, germanium, arsenic and/or antimony (Sb); X = chromium, manganese, iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), magnesium (Mg), calcium (Ca), strontium (Sr) and/or barium (Ba); X = sulfur; X = Cu, Fe, Co, Ni, Zn, cadmium, Mn, Mg, Ca, Sr and/or Ba; X = Nb, Ta and/or Sb; a = 1-3; b = 0.1-2; c = 0-5; d, e = 0-1; f = 0-2; g = 0.5-1.5; h = 2-4; x, y = values depending on the valency and frequency of elements other than oxygen; p = 1; and q = 0; or p, q not = 0 and p/q = (160-1):1 The standard deviation of the stoichiometric coefficient a of the variable X of individual crystallites of component A is less than 0.40, preferably less than 0.20, especially less than 0.11. An Independent claim is also included for the preparation of multimetal oxide (I).

    39.
    发明专利
    未知

    公开(公告)号:DE19815280A1

    公开(公告)日:1999-10-07

    申请号:DE19815280

    申请日:1998-04-06

    Applicant: BASF AG

    Abstract: The invention relates to multi-metal oxide compounds with a 2-component structure, containing molybdenum, vanadium, antimony, one or more of the elements W, Nb, Ta, Cr and Ce and one or more of the elements Cu, Zn, Co, Fe, Cd, Mn, Mg, Ca, Sr and Ba. The invention also relates to the use of said compounds for producing acrylic acid by means of a gas phase catalytic oxidation process.

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