公开(公告)号：AU2003246670A1

公开(公告)日：2004-02-09

申请号：AU2003246670

申请日：2003-07-10

Applicant: BASF AG

Inventor： PETZOLDT JOCHEN ,  MULLER-ENGEL KLAUS JOACHIM ,  DIETERLE MARTIN ,  HAMMON ULRICH

IPC: B01J8/00 ,  B01J8/06 ,  B01J23/00 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055

Abstract: A process for the heterogeneously catalyzed gas-phase partial oxidation of an organic compound over a fixed catalyst bed present in a fixed-bed reactor having a plurality of catalyst tubes, in which the reduction of the quality of the catalyst load with increasing duration of operation is restored by a partial catalyst change, is described.

公开(公告)号：AU2003246662A1

公开(公告)日：2004-02-02

申请号：AU2003246662

申请日：2003-07-09

Applicant: BASF AG

Inventor： HAMMON ULRICH ,  MESCHKE JOCHEN ,  RAUH ULRICH ,  MULLER-ENGEL KLAUS JOACHIM ,  SCHLEMMER PETER

IPC: B01J4/00 ,  C07B61/00 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07B41/06

公开(公告)号：DE50004326D1

公开(公告)日：2003-12-11

申请号：DE50004326

申请日：2000-02-28

Applicant: BASF AG

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

IPC: B01J23/00 ,  B01J23/31 ,  B01J23/88 ,  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：AU2003205563A1

公开(公告)日：2003-07-24

申请号：AU2003205563

申请日：2003-01-03

Applicant: BASF AG

Inventor： HAMMON ULRICH ,  SCHRODER JURGEN

IPC: C07C51/44 ,  C07C51/50 ,  C07C57/075 ,  C07C67/62

Abstract: A process for the fractional condensation of a hot gas mixture which as well as acrylic acid contains at least one further condensable component in a column in the presence of at least one stabilizer comprises metering in at least a portion of the at least one stabilizer as a melt.

公开(公告)号：BR0111821A

公开(公告)日：2003-06-17

申请号：BR0111821

申请日：2001-06-27

Applicant: BASF AG

Inventor： KROKOSZINSKI ROLAND ,  HAMMON ULRICH ,  TODD KEVIN

IPC: C07C27/14 ,  C07B61/00 ,  C07C45/33 ,  C07C45/35 ,  C07C45/50 ,  C07C47/02 ,  C07C47/22 ,  C07C51/215 ,  C07C51/235 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055

Abstract: A process for preparing hydroformylation products of propylene and for preparing acrylic acid and/or acrolein comprises a) feeding a propylene-containing feed in which from 2 to 40% by weight of propane is present and also carbon monoxide and hydrogen into a reaction zone and reacting this mixture in the presence of a hydroformylation catalyst to form hydroformylation products of propane, b) separating a stream consisting essentially of unreacted propylene and propane from the output from the reaction zone, and c) subjecting the stream consisting essentially of propylene and propane to a catalytic gas-phase oxidation in the presence of molecular oxygen to form acrylic acid and/or acrolein.

公开(公告)号：DE59708776D1

公开(公告)日：2003-01-02

申请号：DE59708776

申请日：1997-08-04

Applicant: BASF AG

Inventor： HEIDA BERND ,  THIESSEN FRITZ ,  HAMMON ULRICH

IPC: B01D17/025 ,  B01D17/02 ,  C07C51/25 ,  C07C57/04 ,  C07C57/055 ,  C07C57/07

Abstract: In a separator (11), designed to separate mixtures composed of liquids of various densities, the inflow (12) of the liquid mixture is so arranged and so designed that the inflowing liquid mixture hits an inner wall(16), located opposite the separator outflows, at an angle alpha of 0 DEG - 45 DEG relative to the normal to the container wall. Such a separator can be used in the manufacturing process for acrylic acid through catalytic vapour-phase oxidation of propene.

公开(公告)号：DE10064641A1

公开(公告)日：2002-06-27

申请号：DE10064641

申请日：2000-12-22

Applicant: BASF AG

Inventor： HAMMON ULRICH ,  NESTLER GERHARD ,  SCHROEDER JUERGEN

IPC: C07C51/25 ,  C07C51/43 ,  C07C51/44 ,  C07C51/50 ,  C07C57/07 ,  C07C57/075 ,  C07C43/23 ,  C07C51/21 ,  C07C57/04 ,  C07D279/16 ,  C09K15/06

Abstract: Production of acrylic acid by heterogeneous catalytic, gas-phase partial oxidation of 3C precursor(s) with molecular oxygen followed by cooling and fractional condensation or rectification, in which phenothiazine and phenolic compound(s) are introduced at or near the head of the rectification or condensation column.

公开(公告)号：BR0008825A

公开(公告)日：2002-03-26

申请号：BR0008825

申请日：2000-02-28

Applicant: BASF AG

Inventor： UNVERRICHT SIGNE ,  ARNOLD HEIKO ,  TENTEN ANDREAS ,  HAMMON ULRICH

IPC: B01J23/88 ,  B01J8/02 ,  B01J8/04 ,  B01J8/06 ,  B01J23/887 ,  B01J37/02 ,  C07B61/00 ,  C07C51/235 ,  C07C51/25 ,  C07C57/04 ,  C07C57/055

Abstract: In a process for the catalytic gas-phase oxidation of acrolein to acrylic acid, the reaction gas starting mixture is passed, with an acrolein loading of >=150 l (s.t.p.)/l.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：BR0008771A

公开(公告)日：2002-01-08

申请号：BR0008771

申请日：2000-02-28

Applicant: BASF AG

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

IPC: B01J23/88 ,  B01J23/00 ,  B01J23/31 ,  B01J23/887 ,  B01J35/00 ,  C07B61/00 ,  C07C27/14 ,  C07C45/35 ,  C07C47/22 ,  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 an increased propene loading, in a first reaction stage, over a first fixed-bed catalyst and then the acrolein-containing product gas mixture of the first reaction stage is oxidized, in a second reaction stage, with an increased acrolein loading, over a second fixed-bed catalyst, the catalyst moldings in both reaction stages having an annular geometry.

公开(公告)号：DE19934324A1

公开(公告)日：2000-09-07

申请号：DE19934324

申请日：1999-07-21

Applicant: BASF AG

Inventor： UNRATH LUTZ ,  HAMMON ULRICH ,  SCHUBERT DIETER

IPC: B01J8/00 ,  B01J8/06 ,  B65G65/32

Abstract: The filling tube (13) having a filling unit (7) supplying the bulk material on slide blocks (4, 6) can be moved in a frame structure (1) in two directions. Apparatus for filling bulk material into tubes has a number of storage vessels (14) that receive the bulk material, and conveying channels (10) located below the storage vessels for transporting the bulk material through a vibrating unit (9) to a run-off funnel (11) and for dosing the required amount of bulk material into the conveying grooves. The filling tube (13) having a filling unit (7) supplying the bulk material on slide blocks (6) can be moved in a frame structure (1) in two directions.