公开(公告)号：DE3063982D1

公开(公告)日：1983-08-04

申请号：DE3063982

申请日：1980-09-15

Applicant: STANDARD OIL CO OHIO

Inventor： PAPERIZOS CHRISTOS ,  CALLAHAN JAMES LOUIS

IPC: C07C27/14 ,  B01J21/08 ,  B01J23/28 ,  B01J23/31 ,  B01J27/057 ,  B01J37/04 ,  C07B33/00 ,  C07B61/00 ,  C07C27/00 ,  C07C45/35 ,  C07C47/22 ,  C07C67/00

Abstract: A process for preparing a supported solid oxide complex catalyst using silica as support characterised in that one adds fumed silica to a mixture containing one or more active components of the catalyst; dries said mixture to form a dried first-stage mixture; adds, in solution, silica or a silica-containing compound other than fumed silica to the dried first stage mixture optionally with further fumed silica; and dries and calcines the resulting mixture is provided. The use of fumed silica produces a supported solid oxide complex catalyst of increased attrition resistance. Such catalyst is useful in the preparation of unsaturated aldehydes and acids from propylene or isobutylene by vapour phase oxidation. The use of inert or recycle gas increases the performance of such catalyst in this reaction.

公开(公告)号：BR9500736A

公开(公告)日：1995-10-31

申请号：BR9500736

申请日：1995-02-22

Applicant: STANDARD OIL CO OHIO

Inventor： BLUM PATRICIA RAE ,  CIRJAK LARRY MICHAEL ,  LEMANSKI MICHAEL FRANCIS ,  PAPERIZOS CHRISTOS ,  PEPERA MARC ANTHONY ,  SURESH DEVASIRVATHAM DHANARAH

IPC: B01J21/08 ,  B01J23/44 ,  B01J23/52 ,  B01J23/56 ,  B01J23/58 ,  B01J23/60 ,  B01J23/62 ,  B01J23/63 ,  B01J23/644 ,  B01J23/648 ,  B01J23/66 ,  B01J23/68 ,  B01J32/00 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  B01J37/04 ,  C07B61/00 ,  C07C67/04 ,  C07C67/055 ,  C07C69/15 ,  C08F18/08

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 halide-free metal salt of Pd and M, wherein M comprises Ba, 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 halide-free alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 100 microns, preferably below 60 microns. The pore volume of these particles is from 0.2 to 0.7cm /g and the surface area is from 100 to 200 m /g.