11.
    发明专利
    未知

    公开(公告)号:DE19712820A1

    公开(公告)日:1998-10-01

    申请号:DE19712820

    申请日:1997-03-26

    Applicant: BASF AG

    Abstract: The invention relates to multi-metal oxides of general formula (I) Mo12-a-b-c Va M b M c Ox, wherein the variables have the following meaning: M = W and/or Nb, M = Ti, Zr, Hf, Ta, Cr, Mn, Re, Ag, Cu, Si, and/or Ge, a = 0.1-6, b = 0-6, c = 0-6, with the proviso that a + b + c = 0.1-6 and x = a number determined by the valence and abundance of elements in (I) different from oxygen. Said oxides are used as combustion moderators for gas-producing mixtures. They can be used, particularly in air bag systems, as a mixture or two-phased multi-metal oxide mass with multi-metal oxides containing copper.

    MULTI-METAL OXIDES
    14.
    发明专利

    公开(公告)号:CZ336296A3

    公开(公告)日:1997-08-13

    申请号:CZ336296

    申请日:1996-11-15

    Applicant: BASF AG

    Abstract: A multimetal oxide of formula (I) Mo12-a-b-cVaM bM cOx is new, where: M = tungsten (W) and/or niobium (Nb); M = titanium (Ti), zirconium (Zr), hafnium (Hf), tantalum (Ta), chromium (Cr), silicon (Si) and/or germanium (Ge); a = 0.1-6; b = 0-6; c = 0-6; a+b+c = 0.1-6; and x = number determined by the valency and frequency of the element in (I) except oxygen. Its atomic space arrangement is determined by powder X-ray diffraction (the intensity A of the diffracted X-ray beam as a function of two-fold diffraction angle (2&thetas; )) using Cu-K alpha -radiation ( lambda = 1.54178 Angstrom ), so that in the 2&thetas; region of 5-50 degrees the following diffraction lines are produced: Al(X-ray diffraction line) = 8.3 plus or minus 0.7 (2&thetas; degrees ); A2=14.4 plus or minus 0.7; A3=22.3 plus or minus 0.2; A4=23.5 plus or minus 0.7; A5=27.2 plus or minus 0.4; A6=32.0 plus or minus 0.8; A7=34.8 plus or minus 0.6; A8=38.7 plus or minus 0.5; A9=45.4 plus or minus 0.4; and A10=48.8 plus or minus 0.4. Also claimed are: (i) a process for catalytic gas phase oxidation of organic compounds using the above multimetal oxide; and (ii) a finely divided mixture containing the above multimetal oxide (I) and a multimetal oxide (II) of formula: M 12CudHeOy, where: M = molybdenum (Mo), W, vanadium (V), Nb and/or Ta; d = 4-30; e = 0-20; and y = a number determined by the valency and frequency of the elements in (II) except oxygen.

    METHOD FOR THE PRODUCTION OF BUTADIENE FROM N-BUTANE

    公开(公告)号:MY135793A

    公开(公告)日:2008-06-30

    申请号:MYPI20032539

    申请日:2003-07-07

    Applicant: BASF AG

    Abstract: THE INVENTION RELATES TO A PROCESS FOR PREPARING BUTADIENE FROM N-BUTANE COMPRISING THE STEPS (A) PROVIDING AN N-BUTANE-CONTAININGFEED GAS STREAM,(B) FEEDING THE N-BUTANE-CONTAINING FEED GAS STREAM INTO A FIRST DEHYDROGENATION ZONE AND NONOXIDATIVELY CATALYTICALLY DEHYDROGENATING N-BUTANE TO 1-BUTENE, 2-BUTENE AND OPTIONALLY BUTADIENE TO OBTAIN A FIRST PRODUCT GAS STREAM COMPRISING N-BUTANE,1-BUTENE AND 2-BUTENE, WITH OR WITHOUT BUTADIENE AND SECONDARY COMPONENTS, (C) FEEDING THE FIRST PRODUCT GAS STREAM COMPRISING N-BUTANE, 1-BUTENE AND 2-BUTENE,WITH OR WITHOUT BUTADIENE AND SECONDARY COMPONENTS, INTO A SECOND DEHYDROGENATION ZONE AND OXIDATIVELY DEHYDROGENATING 1-BUTENE AND 2-BUTENE TO BUTADIENE TO GIVE A SECOND PRODUCT GAS STREAM COMPRISING BUTADIENE, N-BUTANE AND STEAM, WITH OR WITHOUT SECONDARY COMPONENTS, (D) RECOVERING BUTADIENE FROM THE SECOND PRODUCT GAS STREAM.

    18.
    发明专利
    未知

    公开(公告)号:ES2142527T3

    公开(公告)日:2000-04-16

    申请号:ES96112063

    申请日:1996-07-26

    Applicant: BASF AG

    Abstract: Multi-metal oxide compsn. of general formula ÄAÜpÄBÜq (I) is new (where, A = Mo12Va(X b)(X c)(X d)X e)(X f )(X g)Ox, B = X 12CuhHiOy (promoter phase); X = W, Nb, Ta, Cr and/or Ce; X = Cu, Ni, Co, Fe, M n and/or Zn; X = Sb and/or Bi; X = Li, Na, K, Rb, Cs and/or H; X = Mg, Ca, Sr and/or Br; X = Si, Al, Ti and/or Zr; X = Mo, W, V, Nb and/or Ta; a = 1-8; b = 0.2-5; c = 0-23; d = 0-50; e = 0-2; f = 0-5; g = 0-50; h = 4-30; i = 0-20; x, y = values determining the valency and frequency of elements different from oxygen in the compsn.; and p, q = values other than zero, whose ratio p/q = 160-1:1. The proportions of (A)p and (B)q are in the form of chemical compsns. differing from their local environment. A and B are distributed relative to each other such as a mixt. of finely divided A and finely divided B, with the proviso that B contains crystals B* of oxometallates of formula CuMoaWbVcNbdTeOy (II) (where, a/(A+B+C+D+E)=0.7-1.3; (B+C+D+E)/A = 0.01-1; and Y = a value determined by the valency and frequency of elements in (II) different from oxygen) of a new structure type (HT-Cu molybdate) defined by the X-ray diffraction pattern: d(A)=6.79+/-0.3; 3.56+/-0.3; 3.54+/-0.3, 3.40+/-0.3; 3.04+/-0.3, 2.96+/-0.3; 2.67+/-0.2; 2.66+/-0.2; 2.56+/-0.2, 2.36+/-0.2; 2.35+/-0.2; 2.27+/-0.2; 2.00+/-0.2;1.87+/-0.3; 1.70+/-0.2; 1.64+/-0.2; 1.59+/-0.2; 1.57+/-0.2; 1.57+/-0.2; 1.55+/-0.2; 1.51+/-0.2; 1.44+/-0.2. Also claimed are: (i) the oxometallates of formula (II); (ii) mixt. of oxometallates (II); (iii) prodn. of the multi-metal oxide compsn..

    19.
    发明专利
    未知

    公开(公告)号:DE19726667A1

    公开(公告)日:1998-12-24

    申请号:DE19726667

    申请日:1997-06-23

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing enol ethers of formula (I), in which R is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical, which radicals can carry other substitutes that do not react with acetylenes or allenes; the R radicals are, independently of each other, hydrogen, or aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals, which can interconnect forming a ring; and m stands for 0 or 1. In this method, acetals or ketals of formula (II) are reacted with acetylenes or allenes of formula (III) or (IV), in which the R and R radicals have the aforementioned meanings. The reaction takes place in the gas phase, at high temperature, in the presence of a heterogeneous catalyst containing zinc or cadmium together with silicon and oxygen.

    Selective oxidation of non-cyclic unsaturated hydrocarbon

    公开(公告)号:DE19705326A1

    公开(公告)日:1998-08-13

    申请号:DE19705326

    申请日:1997-02-12

    Applicant: BASF AG

    Abstract: A process for the selective oxidation of non-cyclic unsaturated hydrocarbons (UHC) other than isobutene, especially non-cyclic poly-unsaturated alkenes, to give oxygen-containing organic compounds. The process comprises reacting the UHC, or a gas mixture containing UHC, at 150-600 (preferably 180-450) deg C with an optionally supported catalyst material based on a silver- vanadium mixed oxide of formula AgxMyVOz (I), in which x = 0.001-3; M = another element, preferably from main groups 1-6 or sub-Groups 1-3 and 5-8; y = 0-0.5; z = the number required for charge neutrality between cations and oxygen anions. Preferably x = 0.001-1, with y and z as above. Preferred (I) is a beta - or delta -silver-vanadium bronze. The catalyst may be used as an unsupported bulk material, or supported on clay, pillared clay, zeolites, aluminium phosphate, silicon carbide, silicon nitride, boron nitride, carbon, or oxides of titanium, zirconium, zinc, thorium, magnesium, calcium, barium or silicon. The process comprises (a) at least partial reduction of (I) by contact with the UHC or an oxygen-free gas mixture containing UHC, and (b) re-oxidation of the reduced catalyst with gas containing molecular oxygen or another oxygen- containing oxidising agent. Stage (a) is preferably carried out with a gas containing the UHC and a sub-stoichiometric amount of O2 (especially using air) or other oxidising agent as above, preferably dinitrogen oxide.

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