CATALYST BASED ON MOLYBDENUM PROMOTED TYPE VANADIUM AND ANTIMONY OXIDE FOR SELECTIVE AMMOXIDATION OF PARAFFIN

    公开(公告)号:JPH11310562A

    公开(公告)日:1999-11-09

    申请号:JP8261299

    申请日:1999-03-25

    Abstract: PROBLEM TO BE SOLVED: To provide an improved process for ammoxidation from a paraffin into an unsaturated mononitrile and corresponding monoolefin. SOLUTION: This process is to synthesize acrylonitrile or methacrylonitrile by a catalytic reaction of a paraffin selected from between propane and isobutane in the vapor phase according to a catalytic contact of a catalyst with a reactional component in a reactional zone of oxygen molecules with ammonia. The feed composition has a molar ratio of the paraffin to the ammonia within the range of about 2.5-16 and a molar ratio of the paraffin to the oxygen within the range of about 1.0-10. The catalyst contains elements in a ratio represented by the empirical formula VSbm Aa Mob Dd Ox [A is one or more kinds of Ti, Sn, Fe, Cr and Ga; D is one or more kinds of Li, Mg, Ca, Sr, Ba, Co, Ni, Zn, Ge, Nb, Zr, W, Cu, The, Ta, Se, Bi, Ce, In, As, B and Mn; (m) is 0.8-4; (a) is 0.01-2; 0

    METHOD FOR AMMOXIDATION OF PARAFFINS

    公开(公告)号:CA2055739A1

    公开(公告)日:1992-06-04

    申请号:CA2055739

    申请日:1991-11-18

    Abstract: CSL-P-3645 Disclosed is a process for making an a , .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 containing the elements indicated by the empirical formula, Vv Aa DdSnm Sbn CUc0x (formula 1) in the relative atomic proportions indicated by the subscripts, where A is selected from Te and Bi D is one or more optional elements selected from Mo, W, Ti, Ge, Ce, La, Cr, Mn, Mg, Ca, Co, Ni, Fe, Nb, Ta, Ag, Zn, Cd, B, P, Na, K and Cs, and a is 0.001 to 30 d is zero to 30 c is 0.001 to 30 m is 0.1 to 60 n is 0.1 to 60 n/v is > 12 and v + a + c + d, and x is determined by the valence requirements of the elements present, 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:02 in the range from 1 to 10. Applns.AZ5

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