公开(公告)号：DE59500906D1

公开(公告)日：1997-12-04

申请号：DE59500906

申请日：1995-08-29

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: 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 cocurrent 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 DEG to 10 DEG C.; and obtaining product acrolein at a selectivity >/=85 mol % from the reactor at a single pass propene conversion >/=90 mol %.

公开(公告)号：DE19533715A1

公开(公告)日：1997-03-13

申请号：DE19533715

申请日：1995-09-12

Applicant: BASF AG

Inventor： FETZER THOMAS DR ,  WAGNER ECKHART DR ,  SCHUMACHER VOLKER DR ,  BUERGER GERT DR ,  ROETH EMIL DIPL ING ,  RUPPEL WILHELM DR ,  WISTUBA HERMANN DR ,  OTTO BERNHARD DR

IPC: B01D53/56 ,  B01D53/77 ,  B01D53/86 ,  C01B21/38 ,  C01B21/40

Abstract: The invention concerns a method of removing nitrogen oxides from a gas flow. The gas flow is guided: (A) through a stage in which the nitrogen oxides, apart from N2O, are absorbed in an absorption agent, or the nitrogen oxides, apart from N2O, are reacted with an absorption agent at a pressure of between 1.5 and 20 bar; and (B) through a stage for reducing the N2O content, preferably using the pressure level prevailing in step (A). The invention further concerns a device for carrying out this method and the use thereof.

公开(公告)号：DE19525506A1

公开(公告)日：1997-01-16

申请号：DE19525506

申请日：1995-07-13

Applicant: BASF AG

Inventor： HEFNER WERNER DR ,  MACHHAMMER OTTO DR ,  NEUMANN HANS-PETER DR ,  TENTEN ANDREAS DR ,  RUPPEL WILHELM DR ,  VOGEL HERBERT DR

IPC: C07C45/35 ,  C07C51/25 ,  C07C57/055 ,  C07C47/22

Abstract: In continuous gas phase oxidn. of C3H6 to acrolein (I) and/or acrylic acid (II) with heterogeneous catalyst in an oxidn. reactor, the charge gas mixt. (III) contains only inert diluent gas(es) (IIIA) in addn. to C3H6 and O2 and (pt. of) (IIIA) is sepd. from the prodn. gas mixt. and recycled to the oxidn. reactor. The novelty is that (IIIA) consists of over 85 vol. % 1-5C satd. hydrocarbon(s).

公开(公告)号：CZ73596A3

公开(公告)日：1996-10-16

申请号：CZ73596

申请日：1996-03-08

Applicant: BASF AG

Inventor： WERNER HEFNER DR ,  OTTO MACHHAMMER DR ,  NEUMANN HANS-PETER DR ,  TENTEN ANDREAS DR ,  RUPPEL WILHELM DR ,  VOGEL HERBERT DR

IPC: C07B35/04 ,  C07B41/06 ,  C07B41/08 ,  C07C27/00 ,  C07C45/32 ,  C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C51/25 ,  C07C51/265 ,  C07C57/05 ,  C07D301/08

Abstract: Continuous gas phase partial oxidn. of an organic cpd. (I) with heterogeneous catalyst in an oxidn. reactor uses a charge gas mixt. contg. (I) O2 and an inert diluent gas (II), which consists partly of combustible gases (IIA). The novelty is that the (IIA) fraction of (II) in the prod. gas stream leaving the oxidn. reactor is not recycled to partial oxidn. but used in another chemical reaction.

公开(公告)号：DE19508531A1

公开(公告)日：1996-09-12

申请号：DE19508531

申请日：1995-03-10

Applicant: BASF AG

Inventor： HEFNER WERNER DR ,  MACHHAMMER OTTO DR ,  TENTEN ANDREAS DR ,  RUPPEL WILHELM DR ,  VOGEL HERBERT DR

IPC: C07C45/35 ,  C07C51/235 ,  C07C51/25 ,  C07C51/265 ,  C07C57/055 ,  C07D301/08 ,  C07B35/04 ,  C07C47/22 ,  C07C57/05

Abstract: Continuous gas phase partial oxidn. of an organic cpd. (I) with heterogeneous catalyst in an oxidn. reactor uses a charge gas mixt. contg. (I) O2 and an inert diluent gas (II), which consists partly of combustible gases (IIA). The novelty is that the (IIA) fraction of (II) in the prod. gas stream leaving the oxidn. reactor is not recycled to partial oxidn. but used in another chemical reaction.

公开(公告)号：DE59301131D1

公开(公告)日：1996-01-25

申请号：DE59301131

申请日：1993-02-25

Applicant: BASF AG

Inventor： HESS KLAUS DR ,  RUPPEL WILHELM DR ,  MORSBACH BERND ,  REGENAUER WILLI

IPC: C07D319/24 ,  B01D53/44 ,  B01D53/86 ,  B01J23/28 ,  B01J23/30 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J37/00

公开(公告)号：ES2077281T3

公开(公告)日：1995-11-16

申请号：ES92107266

申请日：1992-04-29

Applicant: BASF AG ,  DAIMLER BENZ AG

Inventor： AGAR DAVID DR ,  BROECKER FRANZ JOSEF DR ,  KOECHEL OLIVER ,  MORSBACH BERND ,  RUPPEL WILHELM DR ,  WUENSCH MARTIN DR ,  DAUDEL HELMUT ,  GAERTNER UWE

IPC: B01D53/30 ,  B01D53/86 ,  B01D53/94 ,  F02B3/06

公开(公告)号：DE4023239A1

公开(公告)日：1992-01-23

申请号：DE4023239

申请日：1990-07-21

Applicant: BASF AG

Inventor： MARTAN HANS DR ,  WEGERLE ULRIKE ,  RUPPEL WILHELM DR ,  RIEKERT LOTHAR PROF DR ,  BECKER DIETER ,  KOTTER MICHAEL DR

IPC: B01J23/88 ,  B01J23/887 ,  B01J27/19 ,  B01J27/192 ,  C07B61/00 ,  C07C45/35 ,  C07C47/22

公开(公告)号：AT69735T

公开(公告)日：1991-12-15

申请号：AT88121352

申请日：1988-12-21

Applicant: BASF AG

Inventor： AGAR DAVID DR ,  RUPPEL WILHELM DR ,  HOELDERICH WOLFGANG DR ,  DREWS RONALD DR

IPC: B01D53/86 ,  B01D53/36

公开(公告)号：DE3744388A1

公开(公告)日：1989-07-13

申请号：DE3744388

申请日：1987-12-29

Applicant: BASF AG

Inventor： AGAR DAVID DR ,  RUPPEL WILHELM DR ,  HOELDERICH WOLFGANG DR ,  DREWS RONALD DR

IPC: B01D53/86