Coated catalysts comprising a multimetal oxide comprising molybdenum

Abstract

The invention relates to a coated catalyst comprising (a) a support body, (b) a first layer comprising a molybdenum oxide or a precursor compound which forms molybdenum oxide, (c) a second layer comprising a multimetal oxide comprising molybdenum and at least one further metal. The molybdenum oxide of the first layer is preferably MoO3. The multimetal oxide of the second layer is preferably a multimetal oxide of the general formula II Mo12BiaCrbX1cFedX2eX3fOy   (II).

Dependencies are inferred from the claim text.