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AssigneeThe Standard Oil Company
InventorsPATRICIA RAE BLUM, LARRY MICHAEL CIRJAK, MARC ANTHONY PEPERA, CHRISTOS PAPARIZOS, GEORGE FREDERICK SALEM, MICHAEL JAMES BAKER
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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.
A support for the manufacture of the vinyl acetate catalyst comprising a mixture of substantially inert microspheroidal particles having a pore volume of between 0.2 to 0.7 cc/g, a surface area of between 50 to 200 m2/g and at least 50% of said particles are less than 105 microns.
A process for the manufacture of a substantially inert support for a fluid bed vinyl acetate catalyst comprising mixing less than 100% to 20 wt % of an aqueous sol comprising substantially inert microspheroidal particles with greater than 0% to 80 wt % of solid substantially inert particulate material to form an aqueous mixture, spray drying said aqueous mixture, and calcining said particles to form said substantially inert support.
Dependencies are inferred from the claim text.