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Method for preparing annular shell catalyst and its use for preparing acronin
Time of issue:
Feb 23,2023
The present invention relates to a method for preparing a catalyst consisting of an annular support and a catalytically active oxide material applied to the surface of the support, the catalytically active oxide material containing at least molybdenum, bismuth, cobalt and/or nickel and iron. Thoroughly dried blends are produced from starting compounds of the elemental components of the catalytically active oxide material, which are heat treated at 150-350 ° C to obtain precursor materials. The carrier is then wetted with water, a layer of precursor material is bonded to the surface of the wetted carrier by contacting the carrier with the subdivided precursor material, and the coated carrier is then dried.
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