124.
    发明专利
    未知

    公开(公告)号:ES2198995T3

    公开(公告)日:2004-02-01

    申请号:ES99971784

    申请日:1999-11-10

    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.

    METHOD FOR PRODUCING 4-VINYLCYCLOHEXENE, ETHYL BENZOLE AND STYRENE

    公开(公告)号:CA2474762A1

    公开(公告)日:2003-08-28

    申请号:CA2474762

    申请日:2003-02-17

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing 4-vinylcyclohexene comprising the following steps: (A) a feed gas stream containing n-butane is prepared; (B) said feed gas stream containing n-butane is fed to at least one dehydrogenation zone, where it is dehydrogenated from n-butane to butadiene, whereby a butadiene, n-butane, optionally 1-butene and 2-butene and optionally water vapour and a product stream containing additional minor constituents are obtained; (C) the product stream from the dehydrogenation, optionally after separation of the water vapour and minor constituents, is fed to a dimerization zone, where the butadiene is catalytically dimerized to obtain 4- vinylcyclohexene, n-butane and optionally 1-butene, 2-butene and a product stream containing butadiene that has not been converted; (D) the 4- vinylcyclohexene from the dimerization product stream is separated and the n- butane and optionally 1-butene, 2-butene and the butadiene that has not been converted are returned to the dehydrogenation zone.

    Multi-metal oxide catalyst for gas-phase partial oxidation of aromatic hydrocarbons, e.g. for phthalic anhydride production, contains silver, vanadium, a phosphorus group element and optionally other metals

    公开(公告)号:DE10022103A1

    公开(公告)日:2001-11-15

    申请号:DE10022103

    申请日:2000-05-08

    Applicant: BASF AG

    Abstract: Multi-metal oxides based on silver, vanadium and optionally other metal(s) also contain phosphorus, arsenic, antimony and/or bismuth. Multi-metal oxides consisting essentially of compounds of formula Aga-cQbMcV2Od.eH2O (I), in which a = 0.3-1.9; Q = phosphorus, arsenic, antimony and/or bismuth; b = 0.001-0.3; M = lithium, sodium, potassium, rubidium, cesium, thallium, magnesium, calcium, strontium, barium, copper, zinc, cadmium, lead, chromium, gold, aluminum, iron, cobalt, nickel and/or molybdenum; c = 0-0.5; (a-c) = not less than 0.1; d = a number determined by the valency and occurrence of elements other than oxygen; e = 0-20. The powder X-ray patterns of these oxides (I) show diffraction lines at lattice plane separations (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 Angstrom . Independent claims are also included for: (a) a method for the production of (I) by heating a suspension of vanadium pentoxide in a liquid with a solution of silver salt and the element Q or a compound of Q, optionally with the addition of a compound of M; (b) pre-catalysts for the production of shell catalysts for the partial gas-phase oxidation of aromatic hydrocarbons with molecular oxygen-containing gas, comprising an inert, non-porous support coated with one or more layers of (I); (c) shell catalysts for the above application, made from (I) and an inert support, in which the catalytically active material in the shell(s) contains 30-100 wt% silver-vanadium bronze(s) with an Ag:V atom ratio of 0.15-0.95 and a BET surface of 2-100 m /g; (d) a process for the production of aldehydes, carboxylic acids and/or anhydrides by partial oxidation of aromatic hydrocarbons (see above) using shell catalysts as in (c) in the presence or absence of other shell catalysts for this application containing vanadium pentoxide and anatase as active components (which are, if present, used in a combined catalyst bed).

    130.
    发明专利
    未知

    公开(公告)号:BR9915227A

    公开(公告)日:2001-07-31

    申请号:BR9915227

    申请日:1999-11-10

    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.

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