초록 ▼

A class of mixed oxide catalysts comprising Mn-containing oxides, alkali metals or compounds thereof, and at least one member of the group consisting of oxides of Zr, mixed oxides of Zr and Si, and mixed oxides of Zr and at least one alkaline earth metal. In the more preferred embodiments, the third

A class of mixed oxide catalysts comprising Mn-containing oxides, alkali metals or compounds thereof, and at least one member of the group consisting of oxides of Zr, mixed oxides of Zr and Si, and mixed oxides of Zr and at least one alkaline earth metal. In the more preferred embodiments, the third component serves as a carrier for the Mn and alkaline metal components. The composition preferably comprises a major amount of the carrier material and minor amounts of the other components. The compositions are useful for hydrocarbon conversion, methane conversion, and oxidative dehydrogenation processes characterized by formation of coproduct water.

대표청구항 ▼

A catalyst composition consisting essentially of: (a) Mn-containing oxides, (b) at least one alkali metal or compound thereof, and (c) at least one member of the group consisting of oxides of Zr, mixed oxides of Zr and Si; and mixed oxides of Zr and at least one alkaline earth metal, wherein the amo

A catalyst composition consisting essentially of: (a) Mn-containing oxides, (b) at least one alkali metal or compound thereof, and (c) at least one member of the group consisting of oxides of Zr, mixed oxides of Zr and Si; and mixed oxides of Zr and at least one alkaline earth metal, wherein the amount of Mn present is within the range of about 1 to 40 wt. % based on the combined weight of Mn and component (c) and wherein the atomic ratio of alkali metal: Mn is within the range of about 0.01 to 10:1.