摘要:
A novel catalyst comprising the elements Mo, V and Ti, and an oxidation process, is provided for oxidizing alpha beta unsaturated aliphatic aldehydes in the vapor phase with molecular oxygen to produce the corresponding alpha-beta unsaturated carboxylic acid.
摘要:
A novel catalyst comprising the elements Mo, V and Ta, and an oxidation process, is provided for oxidizing alpha-beta unsaturated aliphatic aldehydes in the vapor phase with molecular oxygen to produce the corresponding alpha-beta unsaturated carboxylic acid.
摘要:
A novel catalyst comprising the elements Mo, V and Ta is provided for oxidizing alpha-beta unsaturated aliphatic aldehydes in the vapor phase with molecular oxygen to produce the corresponding alpha-beta unsaturated carboxylic acid.
摘要:
Ethane is catalytically oxydehydrogenated to ethylene in a gas phase reaction, in the presence or absence of water, at temperatures of .ltoreq.550.degree. C. using a catalyst comprising oxides of the elementsMo.sub.a X.sub.b Y.sub.cwhereinX=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