公开(公告)号：MY136246A

公开(公告)日：2008-08-29

申请号：MYPI20043894

申请日：2004-09-23

Applicant: BASF AG

Inventor： NETO SAMUEL DR ,  RUMMEL WOLFGANG ,  STORCK SEBASTIAN DR ,  ZUEHLKE JUERGEN DR ,  ROSOWSKI FRANK DR

IPC: B01J2/16 ,  B01J8/18 ,  B01J23/00 ,  B01J23/22 ,  B01J27/199 ,  B01J35/02 ,  B01J37/02 ,  F26B3/08 ,  F26B3/092

Abstract: THE INVENTION RELATES TO AN APPARATUS FOR MIXING, DRYING AND COATING PULVERULENT, GRANULAR OR SHAPED LOOSE MATERIAL IN A FLUIDIZED BED, IN PARTICULAR FOR USE IN A PROCESS FOR PRODUCING SUPPORTED CATALYSTS FOR GAS-PHASE OXIDATIONS, WHICH COMPRISES A CONTAINER (10) FOR ACCOMMODATING THE LOOSE MATERIAL, WITH A BOWL-LIKE DEPRESSION (17) BEING PROVIDED IN A LOWER REGION (13) OF THE CONTAINER (10), A CENTRAL TUBE (27) FOR INTRODUCING A GAS, WITH THE CENTRAL TUBE ENTERING THE CONTAINER IN AN UPPER REGION (12) OF THE CONTAINER (10), EXTENDING ESSENTIALLY AXIALLY DOWNWARD IN THE CONTAINER (10) AND OPENING INTO THE DEPRESSION (17), AN ESSENTIALLY ANNULAR DEFLECTION SHIELD (29) WHICH IS FIXED TO THE CENTRAL TUBE (27) IN THE UPPER REGION (12) OF THE CONTAINER (10), A GUIDE RING (31) WHICH IS LOCATED IN THE LOWER REGION (13) OF THE CONTAINER (10) AND SURROUNDS THE CENTRAL TUBE (27) ESSENTIALLY CONCENTRICALLY AT A DISTANCE (L) FOR PART OF ITS LENGTH SO THAT A FIRST OPENING (34) IS FORMED BETWEEN THE WALL OF THE CONTAINER (10) AT THE UPPER EDGE (22) OF THE DEPRESSION AND THE LOWER END (33) OF THE GUIDE RING (31) AND A SECOND OPENING (36) IS FORMED BETWEEN THE DEFLECTION SHIELD (29) AND THE UPPER EDGE (35) OF THE GUIDE RING (31),AND MEANS,FOR EXAMPLE VALVES (21),FOR INTRODUCING A FLUID INTO THE CONTAINER (10). IN THE APPARATUS OF THE PRESENT INVENTION, THE OUTER WALL OF THE CENTRAL TUBE (27) IS AT LEAST PARTLY PROVIDED WITH AN ADHESION-REDUCING COATING (38). IN A PREFERRED EMBODIMENT, THE DISTANCE (L) BETWEEN THE WALL OF THE CENTRAL TUBE (27) AND THE WALL OF THE GUIDE RING (27) IS GREATER THAN THE OPEN HEIGHT (H3) OF THE FIRST OPENING (34). THE INVENTION ALSO PROVIDES A PROCESS FOR PRODUCING SUPPORTED CATALYSTS USING SUCH AN APPARATUS.FIG.1

公开(公告)号：CZ20024057A3

公开(公告)日：2003-05-14

申请号：CZ20024057

申请日：2001-06-08

Applicant: BASF AG

Inventor： MACHHAMMER OTTO DR ,  SCHINDLER GOETZ-PETER DR ,  TENTEN ANDREAS DR ,  HARTH KLAUS DR ,  ZEHNER PETER DR ,  MULLER-ENGEL KLAUS JOACHIM DR ,  ROSOWSKI FRANK DR ,  BORGMEIER FRIEDER DR

IPC: C07C27/14 ,  C07B61/00 ,  C07C5/333 ,  C07C11/06 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/07

Abstract: In a process for the preparation of acrolein or acrylic acid or a mixture thereof from propane, the propane is subjected, in a first reaction stage, to a partial dehydrogenation under heterogeneous catalysis to give propene, of the components contained in the product gas mixture formed in the first reaction stage other than propene and propane at least a portion of the molecular hydrogen present is then separated off from said mixture and the product gas mixture is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propylene oxidation, molecular nitrogen being present for diluting the reaction gas mixture during the propylene oxidation.

公开(公告)号：MY137916A

公开(公告)日：2009-03-31

申请号：MYPI20041556

申请日：2004-04-28

Applicant: BASF AG

Inventor： NETO SAMUEL DR ,  XDCHLKE J XDCRGEN Z DR ,  STORCK SEBASTIAN DR ,  ROSOWSKI FRANK DR

IPC: C07C51/265 ,  C07C51/31 ,  C07D307/89

Abstract: THE INVENTION RELATES TO A PROCESS FOR PREPARING PHTHALIC ANHYDRIDE, IN WHICH THE CATALYTIC GAS-PHASE OXIDATION OF O-XYLENE AND/OR NAPHTHALENE IS CARRIED OUT OVER AT LEAST THREE ZONES OF CATALYSTS OF INCREASING ACTIVITY, WITH ONLY THE LAST ZONE OF THE CATALYST SYSTEM CONTAINING PHOSPHORUS AND THE LAST ZONE ALSO COMPRISING AT LEAST 10% BY WEIGHT OF VANADIUM (CALCULATED AS V₂ O5) BASED ON THE ACTIVE COMPOSITION OF THE CATALYST AND HAVING A RATIO OF VANADIUM (CALCULATED AS V₂O5) TO PHOSPHORUS OF GREATER THAN 35.

公开(公告)号：DE19843329A1

公开(公告)日：1999-04-08

申请号：DE19843329

申请日：1998-09-22

Applicant: BASF AG

Inventor： ROSOWSKI FRANK DR ,  HIBST HARTMUT PROF DR ,  SCHLOEGL ROBERT PROF DR ,  HEREIN DANIEL DR ,  BERNDT SILKE

IPC: B01J27/19 ,  B01J27/199 ,  C07C51/25 ,  C07C57/055

Abstract: Preparation of methacrylic acid by the catalyzed gas phase-oxidation of methacrolein comprises using a multi-metal oxide composition. Preparation of methacrylic acid by the catalyzed gas phase-oxidation of methacrolein comprises using a multi-metal oxide composition of formula M a-bM bM lM 12-cM cOd.e(MoP2Of).g(SbOh).i(SOk).l(H2O).(I) M = Na, K, Rb, Cs and/or NH4 ; M = Cu and/or Ag; M = P; M = Mo and/or W; M = Nb, V and/or Ta; a = 2.7-3.3; b and c = 0-2; d = 0-0.6; g = 0-3; d, f, h and k = numbers dependent on the valency of O; i = 0-0.1; l = 0-03. An Independent claim is included for the composition.