Process for the preparation of fluid bed vinyl acetate catalyst
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United States of America Patent
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-
May 28, 2002
Grant Date -
Aug 30, 2001
app pub date -
Jun 30, 1999
filing date -
Feb 22, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the preparation of a fluid bed vinyl acetate (VAM) catalyst comprising impregnating a support comprising a mixture of substantially inert microspheroidal particles with a solution comprising a metal salt of Pd and M, wherein M comprises Ba, Cd, Au, La, Nb, Ce, Zn, Pb, Ca, Sr, Sb or mixtures thereof, reducing the metal salts to form a deposit of Pd and M on the support surface and impregnating the support with at least one alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 105 microns.
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