Coated catalysts and their preparation

Details Coated catalysts and their preparation Coated catalysts and their preparation

B - Operations, Transporting

01

J

252/52.J, 260/23

B01J 37/02 (2006.01) B01J 23/22 (2006.01) C07C 46/02 (2006.01)

Patent

CA 1134802

ABSTRACT OF THE DISCLOSURE: Novel coated catalysts and a process for their preparation by atomizing a mixture of water and a vanadium-V compound, with or without other metal compounds, and applying this mixture to carrier particles which are them- selves in motion, drying the coating and subjecting the catalyst particles, which are themselves in motion, to repeated brief treatment with a flame or plasma, followed by rapid cooling, defined temperatures and rates of coating being employed. The catalysts may be used with advantage for the preparation of anthraquinones by oxidation of indans.

323920

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