公开(公告)号：DE59913859D1

公开(公告)日：2006-11-02

申请号：DE59913859

申请日：1999-12-01

Applicant: BASF AG

Inventor： HEIKO ARNOLD DR ,  HARTH KLAUS DR ,  NEUMANN HANS-PETER DR ,  HAMMON ULRICH DR ,  FELDER RAIMUND DR

IPC: B01J37/04 ,  B01J21/16 ,  C01G49/00 ,  B01J23/78 ,  B01J23/88 ,  B01J23/887 ,  B01J37/02 ,  C01B33/32 ,  C01G29/00 ,  C01G51/00 ,  C01G53/00 ,  C07B61/00 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C51/25 ,  C07C57/055

Abstract: Multimetal oxide mass is of the following expression Mo12BiaX bFecX dX eOy (I), where X is Co and/or Ni; X is Si and/or Al; X is alkali; 0.3 ≤ a ≤ 1; 2 ≤ b ≤ 10; 0.5 ≤ c ≤ 10; 0 ≤ 10; 0 ≤ e ≤ 0.5 and y is a number which is produced by the sum of the valencies and the stoichiometric coefficient of the remaining elements, where in the crystalline portion, lies beta -X MoO4as main component, Fe2(MoO4)3 as sub component and no MoO3. Independent claim is included for (a) process for producing multi-metal oxide, (b) use of multi-metal oxide and (c) catalyst in the form of stone chips, mold body or shell catalyst.

公开(公告)号：MY121141A

公开(公告)日：2005-12-30

申请号：MYPI20000608

申请日：2000-02-21

Applicant: BASF AG

Inventor： ARNOLD HEIKO DR ,  UNVERRICHT SIGNE DR ,  HAMMON ULRICH DR ,  NEUMANN HANS-PETER DR ,  HARTH KLAUS DR ,  TENTEN ANDREAS DR

IPC: B01J23/88 ,  C07C45/00 ,  B01J8/02 ,  B01J8/04 ,  B01J8/06 ,  B01J23/00 ,  B01J23/31 ,  B01J23/887 ,  B01J35/00 ,  C07B61/00 ,  C07C27/14 ,  C07C45/35 ,  C07C47/22 ,  C07C51/16 ,  C07C51/21 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055

Abstract: IN A PROCESS FOR THE CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACROLEIN, THE REACTION GAS STARTING MIXTURE IS PASSED WITH A PROPENE LOADING OF > 160 1(S.T.P.)/1.H OVER A FIXED-BED CATALYST WHICH IS HOUSED IN TWO SPATIALLY SUCCESSIVE REACTION ZONES A, B, THE REACTION ZONE B BEING KEPT AT A HIGHER TEMPERATURE THAN THE REACTION ZONE A.

公开(公告)号：MY119958A

公开(公告)日：2005-08-30

申请号：MYPI20000623

申请日：2000-02-21

Applicant: BASF AG

Inventor： UNVERRICHT SIGNE DR ,  ARNOLD HEIKO DR ,  TENTEN ANDREAS DR ,  HAMMON ULRICH DR ,  NEUMANN HANS-PETER DR ,  HARTH KLAUS DR

IPC: B01J23/00 ,  B01J23/88 ,  B01J23/31 ,  B01J23/887 ,  B01J35/00 ,  C07B61/00 ,  C07C45/35 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05

Abstract: A PROCESS FOR THE CATALYTIC GAS-PHASE OXIDATION OF PROPENE TO ACRYLIC ACID, IN WHICH THE REACTION GAS STARTING MIXTURE IS OXIDIZED, WITH A HIGH PROPENE LOADING, IN A FIRST REACTION STAGE, OVER A FIRST FIXED-BED CATALYST WHICH IS HOUSED IN TWO SUCCESSIVE REACTION ZONES A, B, THE REACTION ZONE B BEING KEPT AT A HIGHER TEMPERATURE THAN THE REACTION ZONE A, AND THE ACROLEIN-CONTAINING PRODUCT GAS MIXTURE OF THE FIRST REACTION STAGE IS THEN OXIDIZED IN A SECOND REACTION STAGE, WITH A HIGH ACROLEIN LOADING, OVER A SECOND FIXED-BED CATALYST WHICH IS HOUSED IN TWO SUCCESSIVE REACTION ZONES C, D, THE REACTION ZONE D BEING KEPT AT A HIGHER TEMPERATURE THAN THE REACTION ZONE C.

公开(公告)号：CZ294399B6

公开(公告)日：2004-12-15

申请号：CZ229395

申请日：1995-09-07

Applicant: BASF AG

Inventor： RUPPEL WILHELM DR ,  WEGERLE ULRIKE ,  TENTEN ANDREAS DR ,  HAMMON ULRICH DR

IPC: B01J23/88 ,  B01J8/06 ,  B01J21/02 ,  B01J23/16 ,  B01J23/887 ,  B01J27/132 ,  B01J27/192 ,  C07B61/00 ,  C07C45/35 ,  C07C47/22

Abstract: In the present invention, there is described a process of catalytic oxidation of propylene to acrolein in gaseous phase wherein a gas-phase mixture of propene and oxygen is catalytically oxidized by passing a reactant gas mixture comprising propene and oxygen through a plurality of catalyst containing contact tubes in a fixed bed reactor and simultaneously passing only one heat-exchange medium at elevated temperature over the exterior surfaces of the contact tubes in a longitudinal flow pattern which is co-current with the direction of flow of the reactants through said tube; simultaneously superposing a transverse flow on said longitudinal flow of heat exchange medium by means of an arrangement of successive baffles along the contact tubes which leave passage cross-sections free, thereby resulting in a meandrous flow of the heat-exchange medium through the reactor and setting the flow rate of said heat-exchange medium so that its temperature between the point of entry of the medium into the reactor and its point of exit increases by 2 to 10 degC.

公开(公告)号：CZ292498B6

公开(公告)日：2003-10-15

申请号：CZ273596

申请日：1996-09-18

Applicant: BASF AG

Inventor： HAMMON ULRICH DR ,  SCHLIEPHAKE VOLKER DR ,  PIES WOLFGANG DR ,  RAUH ULRICH

IPC: C07B63/00 ,  C07C51/44 ,  C07C57/04 ,  C07C57/07

Abstract: The present method for cleaning a rectification column in which unsaturated acids have been separated by rectification from solvents in which these acids were absorbed after the synthesis reaction, the rectification is briefly interrupted and the rectification column is flushed with an aqueous solution of potassium hydroxide or an aqueous solution of sodium hydroxide in order to separate polymeric sediments. The interruption is preferably carried out at regular time intervals, whereby an alkali metal or an alkaline earth metal neutral salt can be added in the sodium or potassium hydroxide aqueous solution.

公开(公告)号：DE19752199A1

公开(公告)日：1999-05-27

申请号：DE19752199

申请日：1997-11-25

Applicant: BASF AG

Inventor： ULBRICH MICHAEL-DIETER DR ,  SCHRAUT ARMIN DR ,  HAMMON ULRICH DR ,  SCHLIEPHAKE VOLKER DR

IPC: B01D5/00 ,  C07C45/81 ,  C07C51/42 ,  C07C57/07 ,  C07D301/32 ,  C07B63/00 ,  C07C47/127 ,  C07C47/22 ,  C07C209/86 ,  C07C211/46 ,  C07D303/04

Abstract: The temperature difference between gas and condenser surface is reduced, compared with present practice, to less than 20 deg C. At least 10 000 condensation nuclei/cm in the condenser for effective condensation is carried out. The gas mixture should have a Lewis factor between 0.9 and 1.5. Components which are required to be separated are water vapor and an organic vapor, which could be the principal product or a byproduct. Cooling is generally carried out in at least two stages over heat exchange surfaces that could be dry or covered by a water film. The body of the specification, supported by the drawings, contains detailed examples of condensation processes in which data from the inventive and the present methods are compared.

公开(公告)号：DE19746690A1

公开(公告)日：1999-04-29

申请号：DE19746690

申请日：1997-10-22

Applicant: BASF AG

Inventor： HERBST HOLGER DR ,  NESTLER GERHARD DR ,  HAMMON ULRICH DR ,  DAMS ALBRECHT DR

IPC: C07C51/44 ,  C07C57/055 ,  C07C57/07 ,  C07C57/075

Abstract: In the recovery of (meth)acrylic acid from a mixture containing a higher boiling solvent by distillation in a column connected with evaporators, the column is an enhancer column, the mixture is fed to evaporators and (meth)acrylic acid is discharged at the side of the column.

公开(公告)号：CZ422198A3

公开(公告)日：1999-04-14

申请号：CZ422198

申请日：1997-06-19

Applicant: BASF AG

Inventor： SCHLIEPHAKE VOLKER DR ,  HAMMON ULRICH DR ,  PIES WOLFGANG DR ,  RAUTH ULRICH

IPC: F23G7/06 ,  C07C51/42 ,  C07C57/04 ,  C07C57/07 ,  F23D17/00 ,  F23G5/00 ,  F23G7/04

Abstract: In a process for the disposal of low, mediun, and high-boiling secondary components formed during the preparation of (meth)acrylic acid the gaseous low-boiling secondary components are burned, whilst low-boiling and medium-boiling secondary components that are dissolved in water optionally together with high-boiling secondary components treated with solvent are added.

公开(公告)号：ES2115787T3

公开(公告)日：1998-07-01

申请号：ES94101022

申请日：1994-01-25

Applicant: BASF AG

Inventor： TENTEN ANDREAS DR ,  HAMMON ULRICH DR ,  WEIDLICH PETER DR ,  DOERFLINGER WALTER

IPC: B01J23/85 ,  B01J23/88 ,  B01J23/92 ,  B01J23/94 ,  B01J38/48 ,  B01J38/52 ,  B01J38/62 ,  B01J38/68 ,  C07C57/055

Abstract: Process for regenerating spent multimetal oxide oxidation catalysts from catalytic gas-phase oxidations of lower organic compounds, which catalysts, unspent, contain as base constituents the elements Mo, W, V and Cu in oxide form, by the action of oxidising agents and of solubilising aqueous ammonia containing added acetic acid and/or the ammonium salt thereof and subsequent drying and calcination in which, within the process, the content of the metallic constituents is quantitatively determined and supplemented to the respective original value.

公开(公告)号：CZ16096A3

公开(公告)日：1996-08-14

申请号：CZ16096

申请日：1996-01-18

Applicant: BASF AG

Inventor： HERBST HOLGER DR ,  NESTLER GERHARD DR ,  HAMMON ULRICH DR

IPC: C07C57/04 ,  C07C51/44 ,  C07C57/05 ,  C07C57/07

Abstract: In the sepn. of (meth)acrylic acid (I) from mixts. by rectification, in which (I) is discharged from the column at a point higher than the inlet for the mixt., the refluxing liq. is removed in at least one position of the column, the oligomerised and/or polymerised (I) is sepd. and the liq. is recycled to the column.