25.
    发明专利
    未知

    公开(公告)号:DE69017996D1

    公开(公告)日:1995-04-27

    申请号:DE69017996

    申请日:1990-09-13

    Abstract: Disclosed is a process for making an alpha , beta -unsaturated mononitrile by the catalytic reaction of a paraffin containing 3-5 carbon atoms with molecular oxygen and ammonia by catalytic contact of the foregoing reactants in a reaction zone with a metal oxide catalyst composition that has 10-90 weight percent of a diluent/support and 90-10 weight percent of a catalyst containing the elements indicated by the empirical formula. AaDdBicFefMo12Ox in the proportions indicated by the said formula. said diluent/support containing 10 to 100 weight percent Al2O3 and zero to 90 weight percent SiO2 wherein A is one or more of Li, Na, K, Rb, Cs, Tl B, W , Sn and La: D is one or more of Cr, Sb, Pb, P, Cu, Ni, Co, Mn and Mg; a is zero to 10; c is 0.1 to 10; d is zero to 10; and f is 0.2 to 10; and wherein the reactants fed to the reaction zone contain a mole ratio of said paraffin:NH3 in the range from 2 to 16 and a mole ratio of said paraffin to O2 in the range from 1 to 10.

    26.
    发明专利
    未知

    公开(公告)号:DE69011495T2

    公开(公告)日:1994-12-08

    申请号:DE69011495

    申请日:1990-12-13

    Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of bismuth, molybdenum, iron, nickel and magnesium, at least one element selected from the group comprising potassium and cesium, and optionally one element selected from the group comprising cobalt, phosphorus, manganese, tellurium, sodium, cerium, chromium, antimony and tungsten wherein the sum of cesium and potassium is at least 0.1 to 0.4.

    MIXED OXIDE CATALYST OF K, CS, CE, CR, CO, NI, FE, BI AND MO FOR THE MANUFACTURE OF ACRYLONITRILE

    公开(公告)号:AU2003295643A1

    公开(公告)日:2004-06-23

    申请号:AU2003295643

    申请日:2003-11-19

    Abstract: A catalyst comprising a complex of catalytic oxides comprising potassium, cesium, cerium, chromium, cobalt, nickel, iron, bismuth, molybdenum, wherein the relative ratios of these elements is represented by the following general formula A a K b Cs c Ce d Cr e Co f Ni g X h Fe i Bi j Mo 12 O x wherein A is Rb, Na, Li, Tl, or mixtures thereof, X is P, Sb, Te, B, Ge, W, Ca, Mg, a rare earth element, or mixtures thereof, a is 0 to about 1, b is about 0.01 to about 1, c is about 0.01 to about 1, d is about 0.01 to about 3, e is about 0.01 to about 2, f is about 0.01 to about 10, g is about 0.1 to about 10, h is 0 to about 4, i is about 0.1 to about 4, j is about 0.05 to about 4, x is a number determined by the valence requirements of the other elements present, and wherein the catalyst is substantially free of manganese and zinc. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.

    MIXED OXIDE CATALYST OF RB, CE, CR, NI, FE, BI AND MO FOR THE MANUFACTURE OF ACRYLONITRILE

    公开(公告)号:AU2003291572A1

    公开(公告)日:2004-06-23

    申请号:AU2003291572

    申请日:2003-11-19

    Abstract: A catalyst comprising a complex of catalytic oxides comprising rubidium, cerium, chromium, iron, bismuth, molybdenum, and at least one of nickel or nickel and cobalt, optionally magnesium, and optionally one of phosphorus, antimony, tellurium, sodium, lithium, potassium, cesium, thallium, boron, germanium, tungsten calcium, wherein the relative ratios of these elements are represented by the following general formula: Rb a Ce b Cr c Mg d A e Fe f Bi g Y h Mo 12 O x wherein A is Ni or the combination of Ni and Co, Y is at least one of P, Sb, Te, Li, Na, K, Cs, Tl, B, Ge, W, Ca, Zn, a rare earth element, or mixtures thereof, a is about 0.01 to about 1, b is about 0.01 to about 3, c is about 0.01 to about 2, d is 0 to about 7, e is about 0.01 to about 10, f is about 0.01 to about 4, g is about 0.05 to about 4, h is 0 to about 3, x is a number determined by the valence requirements of the other elements present, wherein "b"+"c" is greater than "g" and wherein the catalyst is substantially free of manganese, a noble metal and vanadium. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.

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