B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 23/80 (2006.01) B01J 23/52 (2006.01) B01J 23/58 (2006.01) B01J 23/60 (2006.01) B01J 23/66 (2006.01) B01J 37/02 (2006.01) C07C 67/055 (2006.01) C07C 69/15 (2006.01)
Patent
CA 2128162
Abstract Surface impregnated catalyst, process for the production thereof, and use thereof for the preparation of vinyl acetate The invention relates to Pd/K/Au, Pd/K/Ba, or Pd/K/Cd supported catalysts having an impregnated layer structure, the production thereof and also the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The catalysts specified are produced by spraying the support particles, while mixing intimately with a solution of salt of the corresponding elements in the form of drops having an average diameter of at least 0.3 mm or in the form of liquid jets and then drying the support particles immediately, with the dynamic viscosity of the solution being at least 0.003 Pa?s and the solution volume in spraying being from 5 to 80 % of the pore volume of the support particles.
Abel Roland
Worner Karl-Fred
Celanese Gmbh
Fetherstonhaugh & Co.
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