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公开(公告)号:US06399813B1
公开(公告)日:2002-06-04
申请号:US09929256
申请日:2001-08-14
申请人: Patricia Rae Blum , Larry Michael Cirjak , Marc Anthony Pepera , Christos Paparizos , George Frederick Salem , Michael James Baker
发明人: Patricia Rae Blum , Larry Michael Cirjak , Marc Anthony Pepera , Christos Paparizos , George Frederick Salem , Michael James Baker
IPC分类号: C07C67055
CPC分类号: B01J37/0045 , B01J21/08 , B01J23/44 , B01J23/52 , B01J23/56 , B01J23/58 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , C07C67/055 , C07C69/01 , C07C69/15
摘要: 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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公开(公告)号:US06395676B2
公开(公告)日:2002-05-28
申请号:US09343832
申请日:1999-06-30
申请人: Patricia Rae Blum , Larry Michael Cirjak , Marc Anthony Pepera , Christos Paparizos , George Frederick Salem , Michael James Baker
发明人: Patricia Rae Blum , Larry Michael Cirjak , Marc Anthony Pepera , Christos Paparizos , George Frederick Salem , Michael James Baker
IPC分类号: B01J2304
CPC分类号: B01J37/0045 , B01J21/08 , B01J23/44 , B01J23/52 , B01J23/56 , B01J23/58 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , C07C67/055 , C07C69/01 , C07C69/15
摘要: 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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