초록 ▼

Ethane is catalytically oxydehydrogenated to ethylene in a gas phase reaction, in the presence or absence of water, at temperatures of ≤550°C. using a catalyst comprising oxides of the elements MoaXbYc wherein X=Cr, Mn, Nb, Ta, Ti, V and/or W, Y=Bi, Ce, Co, Cu, Fe, K, Mg, Ni, P, Pb, Sb, Si, Sn, Tl a

Ethane is catalytically oxydehydrogenated to ethylene in a gas phase reaction, in the presence or absence of water, at temperatures of ≤550°C. using a catalyst comprising oxides of the elements MoaXbYc wherein X=Cr, Mn, Nb, Ta, Ti, V and/or W, Y=Bi, Ce, Co, Cu, Fe, K, Mg, Ni, P, Pb, Sb, Si, Sn, Tl and/or U, a=1, b=0 to 2, c=0 to 2, with the proviso that the total value of c for Co, Ni and and/or Fe is <0.5. Acetic acid is also produced.

대표청구항 ▼

A low temperature process for converting ethane to ethylene which comprises catalytically oxydehydrogenating ethane exothermically at a temperature of 450°C. or less in the gas phase in which the catalyst is a calcined composition containing the elements of Mo, X, and Y in the ratio: MoaXbYc wherein

A low temperature process for converting ethane to ethylene which comprises catalytically oxydehydrogenating ethane exothermically at a temperature of 450°C. or less in the gas phase in which the catalyst is a calcined composition containing the elements of Mo, X, and Y in the ratio: MoaXbYc wherein X is at least one of the groups V, Nb and Mn; V and W; V and Mn; or W and Nb. Y is selected from the group consisting of Bi, Ce, Co, Cu, Fe, K, Mg, Ni, P, Pb, Sb, Si, Sn, Tl and/or U, a is 1 b is 0.05 to 1 c is 0 to 2 with the proviso that the total value of c for Fe, Co and/or Ni is less than 0.5. A process for the catalytic oxydehydrogenation of ethane to ethylene exothermically in the gas phase at a temperature of 550°C. or less by contacting the ethane under such conditions with a calcined catalyst comprising Mo, V, Nb and one additional element of the group Cu, Ce, Mn and U.