公开(公告)号：BR9914611A

公开(公告)日：2001-08-07

申请号：BR9914611

申请日：1999-08-10

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C27/12 ,  C07B61/00 ,  C07C5/48 ,  C07C11/06 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055 ,  C07C5/333

Abstract: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to a partial oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.

公开(公告)号：DE19910507A1

公开(公告)日：2000-09-14

申请号：DE19910507

申请日：1999-03-10

Applicant: BASF AG

Inventor： JACHOW HARALD ,  TENTEN ANDREAS ,  UNVERRICHT SIGNE ,  ARNOLD HEIKO ,  MACHHAMMER OTTO ,  HAUPT SUSANNE ,  ROSOWSKI FRANK

IPC: B01J23/88 ,  B01J8/02 ,  B01J8/04 ,  B01J8/06 ,  B01J23/31 ,  B01J23/882 ,  B01J23/888 ,  B01J35/00 ,  B01J37/04 ,  C07B61/00 ,  C07C27/14 ,  C07C45/33 ,  C07C47/22 ,  C07C51/215 ,  C07C57/05 ,  B01J23/887 ,  C07C45/35

Abstract: The invention relates to a method for carrying out the heterogeneously catalyzed gas phase oxidation of propane into acrolein and/or acrylic acid in which the initial mixture of reaction gas is fed over a fixed-bed catalyst which is comprised of catalyst charges A, B arranged in two reaction zones A, B that are placed in a spatially successive manner, whereby the temperature of reaction zones A, B are kept at different temperatures.

公开(公告)号：DE19837519A1

公开(公告)日：2000-02-24

申请号：DE19837519

申请日：1998-08-19

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C27/14 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055 ,  C07C5/333 ,  C07C11/06

Abstract: In the production of acrolein and/or acrylic acid from propane, the oxygen required in reaction stage 1 (catalytic dehydrogenation to propene) is supplied in the form of air and at least some of the N2 in the residual gas from final product work-up is removed before this gas is recycled to stage 1. A process for the production of acrolein (AC) and/or acrylic acid (AA) from propane, involving (1) partial oxydehydrogenation to propene with molecular oxygen using homogeneous and/or heterogeneous catalysts, (2) catalytic gas-phase oxidation of the propene-containing product gas in further stage(s) to give AC and/or AA, (3) separation of AC and/or AA and water and (4) recycling the unreacted propane in the residual gas back to stage 1. In this process, the molecular oxygen required in stage 1 (other than circulating oxygen) is added to the starting gas mixture in the form of air, and at least some of the N2 is separated from the residual gas before this is recycled to stage 1.

公开(公告)号：DE19837517A1

公开(公告)日：2000-02-24

申请号：DE19837517

申请日：1998-08-19

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C27/12 ,  C07B61/00 ,  C07C5/48 ,  C07C11/06 ,  C07C45/28 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055 ,  C07C5/333

Abstract: In the production of acrolein and/or acrylic acid from propane, the oxygen required in reaction zone 1 (catalytic dehydrogenation to propene) is supplied as nitrogen-containing modified air containing less N2 and more O2 than normal air and some of the N2 in the off-gas from further zones (propene oxidation) is removed before recycling to zone 1. A process for the production of acrolein (AC) and/or acrylic acid (AA) from propane, involving (a) partial oxydehydrogenation to propene with molecular oxygen in a first reaction zone (1) using homogeneous and/or heterogeneous catalysts, (b) further catalytic gas-phase oxidation of the unseparated product gas mixture in further reaction zone(s) (2) to give AC and/or AA, (c) separation of AC and/or AA and water from the product mixture and (d) recycling unreacted propane to zone 1. In this process, the molecular oxygen required in zone 1 (other than circulating oxygen) is added to the starting gas mixture in the form of nitrogen-containing modified air with a lower N2 content and a higher O2 content than normal air, and at least some of the molecular N2 in the residual gas stream is removed before this stream is recycled to zone 1.

公开(公告)号：BR9914287A

公开(公告)日：2001-06-19

申请号：BR9914287

申请日：1999-08-10

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C27/14 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055

Abstract: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to an oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.

公开(公告)号：AU5512599A

公开(公告)日：2000-03-14

申请号：AU5512599

申请日：1999-08-10

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C27/12 ,  C07B61/00 ,  C07C5/48 ,  C07C11/06 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055 ,  C07C5/333

Abstract: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to a partial oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.

公开(公告)号：AU5422099A

公开(公告)日：2000-03-14

申请号：AU5422099

申请日：1999-08-10

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C27/14 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055

Abstract: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to an oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.

公开(公告)号：DE19838817A1

公开(公告)日：2000-03-02

申请号：DE19838817

申请日：1998-08-26

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  HAUPT SUSANNE ,  SCHLIEPHAKE VOLKER ,  SCHROEDER JUERGEN

IPC: C07C51/42 ,  C07C57/05 ,  C07C57/07

公开(公告)号：DE59901820D1

公开(公告)日：2002-07-25

申请号：DE59901820

申请日：1999-08-10

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C27/14 ,  C07C57/05 ,  C07C57/055

Abstract: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to an oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.

公开(公告)号：BR9914612A

公开(公告)日：2001-08-07

申请号：BR9914612

申请日：1999-08-10

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  TENTEN ANDREAS ,  JACHOW HARALD ,  HAUPT SUSANNE ,  ARNOLD HEIKO ,  UNVERRICHT SIGNE

IPC: C07C27/12 ,  C07B61/00 ,  C07C5/48 ,  C07C11/06 ,  C07C45/28 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055 ,  C07C5/333

Abstract: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to a partial oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.