Process for producing a catalytically active composition being a mixture of a multielement oxide comprising the elements Mo and V and at least one oxide of molybdenum

摘要

A process for producing a catalytically active composition being a mixture of a multielement oxide comprising the elements Mo and V and at least one oxide of molybdenum, in which spray drying of an aqueous solution or of an aqueous suspension of starting compounds comprising the elements of the multielement oxide produces a spray powder P, a pulverulent oxide of molybdenum and optionally shaping assistants are added thereto, shaped bodies are shaped from the resulting mixture and these are converted to the catalytically active composition by thermal treatment.

主权项

1. A process for producing a catalytically active composition, the process comprising:
using sources of elemental constituents of a multielement oxide comprising Mo and V to obtain an aqueous solution, or to obtain an aqueous suspension with the proviso that each of the sources passes through the state of an aqueous solution, spray drying the aqueous solution or aqueous suspension to obtain a spray powder, adding at least one pulverulent oxide of molybdenum and optionally one or more shaping assistants into the spray powder, thereby obtaining a mixture, homogeneously mixing and shaping the mixture, thereby obtaining geometric shaped precursor bodies, and thermally treating the geometric shaped precursor bodies, thereby obtaining the catalytically active composition comprising the at least one pulverulent oxide of molybdenum and the multielement oxide.