Patent ID: 8410014
Filing Date: 2013-04-02
Classification: B01J,C07C

Abstract:
1. A process for producing catalysts for the gas-phase oxidation of olefins, which comprises the steps: (1) suspending at least one pyrogenic metal oxide in a liquid phase to form a suspension, (2) converting the metal oxide into an active state in a continuous phase by producing a fine metal oxide dispersion by means of a dispersing apparatus and/or wet milling, (3) coagulating the dispersion to obtain a viscoelastic mass, (4) shaping the viscoelastic mass into a shaped body, (5) drying the shaped body, (6) calcining the shaped body obtained in step (5), to form a calcined shaped body, (7) converting the calcined shaped body into an active catalyst by applying one or more catalytically active compounds or catalyst precursor compounds which can be converted in a subsequent step into one or more catalytically active compounds, and optionally applying one or more promoter compounds.