公开(公告)号：BR0314770A

公开(公告)日：2005-07-26

申请号：BR0314770

申请日：2003-09-18

Applicant: BASF AG

Inventor： HECHLER CLAUS ,  SCHINDLER GOETZ-PETER ,  PETZOLDT JOCHEN ,  ADAMI CHRISTOPH ,  MACHHAMMER OTTO ,  MULLER-ENGEL KLAUS JOACHIM ,  MARTAN HANS

IPC: B01J23/00 ,  B01J23/887 ,  C07C5/32 ,  C07C5/48 ,  C07C7/05 ,  C07C11/06 ,  C07C27/00 ,  C07C45/35 ,  C07C51/215 ,  C07C51/25 ,  C07C235/24 ,  C07C253/24 ,  C07C253/26 ,  C07C255/08 ,  C07D301/10

Abstract: In a process for preparing at least one partial oxidation and/or ammoxidation product of propylene, the propylene is obtained from crude propane by dehydrogenating and subjected in the presence of unconverted propane as a constituent of a gas mixture 2 which comprises a total C 4 -hydrocarbon content of

公开(公告)号：BR0211582A

公开(公告)日：2004-07-13

申请号：BR0211582

申请日：2002-08-02

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  MARTAN HANS ,  NESTLER GERHARD ,  LLER-ENGEL KLAUS JOACHIM M

IPC: C07C51/215 ,  C07C51/235 ,  C07C51/25 ,  C07C51/43 ,  C07C51/44 ,  C07C51/487 ,  C07C57/05 ,  C07C57/07 ,  C07C57/075 ,  C08F220/00

Abstract: Process for preparation of a water absorbing resin from acrylic acid by its absorption from the reaction gases from catalytic gas phase oxidation of propane, propylene and/or acrolein in an absorption liquid or by separation of the crude acid from the reaction gases by fractional condensation, purification by crystallization, treatment of the crude acrylic acid with an aldehyde trap, (c) separation of pure acrylic acid by distillation, and its radical polymerization is new. A process for preparation of a water absorbing resin involving:(a) production of crude acrylic acid either (a) absorption of acrylic acid from the reaction gases from the catalytic gas phase oxidation of propane, propylene and/or acrolein in an absorption liquid and isolation of crude acrylic acid from acrylic acid loaded absorption liquid, or (a2) by separation of crude acrylic acid from the reaction gases by fractional condensation, and purification by crystallization, (b) treatment of the crude acrylic acid with an aldehyde trap, (c) separation of pure acrylic acid from the crude acrylic acid by distillation, and (d) radical polymerization, optionally after partial neutralization, optionally mixed with other ethylenically unsaturated monomers, of the pure acrylic acid.

公开(公告)号：AU2003277867A1

公开(公告)日：2004-04-23

申请号：AU2003277867

申请日：2003-09-18

Applicant: BASF AG

Inventor： SCHINDLER GOTZ-PETER ,  PETZOLDT JOCHEN ,  ADAMI CHRISTOPH ,  MACHHAMMER OTTO ,  MULLER-ENGEL KLAUS JOACHIM ,  MARTAN HANS ,  HECHLER CLAUS

IPC: B01J23/00 ,  B01J23/887 ,  C07C5/32 ,  C07C5/48 ,  C07C7/05 ,  C07C11/06 ,  C07C27/00 ,  C07C45/35 ,  C07C51/215 ,  C07C51/25 ,  C07C235/24 ,  C07C253/24 ,  C07C253/26 ,  C07C255/08 ,  C07D301/10

Abstract: In a process for preparing at least one partial oxidation and/or ammoxidation product of propylene, the propylene is obtained from crude propane by dehydrogenating and subjected in the presence of unconverted propane as a constituent of a gas mixture 2 which comprises a total C 4 -hydrocarbon content of

公开(公告)号：DE10245585A1

公开(公告)日：2004-04-08

申请号：DE10245585

申请日：2002-09-27

Applicant: BASF AG

Inventor： HECHLER CLAUS ,  SCHINDLER GOETZ-PETER ,  PETZOLDT JOCHEN ,  ADAMI CHRISTOPH ,  MACHHAMMER OTTO ,  MUELLER-ENGEL KLAUS JOACHIM ,  MARTAN HANS

IPC: C07C7/05 ,  C07C47/22 ,  C07C57/04 ,  C07C253/18 ,  C07C255/08 ,  C07D301/08 ,  C07D303/04

Abstract: Preparation of at least one partial oxidation and/or ammoxidation product of propylene involves subjecting crude propylene (prepared by dehydrogenation or oxydehydrogenation in the presence and/or absence of oxygen) in the presence of unconverted propane as a constituent of a gas mixture 2 which comprises a total 4C-hydrocarbon content of at most 3 vol.%, to a heterogeneously catalyzed gas phase partial oxidation and/or ammoxidation. Preparation of at least one partial oxidation and/or ammoxidation product of propylene involves: (a) subjecting crude propane in the presence of and/or absence of oxygen to a homogeneously and/or a heterogeneously catalyzed dehydrogenation and/or oxydehydrogenation to obtain a propane- and propylene-containing gas mixture 1; (b) optionally removing and/or converting to other compounds a portion of the constituents other than propane and propylene contained in the gas mixture 1 to obtain a gas mixture 1' comprising propane and propylene and also compounds other than oxygen, propane and propylene; and (c) subjecting gas mixture 1 and/or gas mixture 1' as a constituent of a gas mixture 2 to a heterogeneously catalyzed gas phase partial oxidation and/or partial gas phase ammoxidation of propylene contained in gas mixture 1 and/or 1'. The total content of 4C-hydrocarbons of gas mixture 2 is at most 3 vol.%.

公开(公告)号：AU2003232246A1

公开(公告)日：2003-11-11

申请号：AU2003232246

申请日：2003-05-02

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  MARTAN HANS ,  MULLER-ENGEL KLAUS JOACHIM

IPC: C07C51/41 ,  C07C51/44 ,  C07C57/04

Abstract: A process prepares an aqueous alkali metal acrylate solution by distillatively removing acrylic acid from a mixture as vapors and taking up the vapors immediately from the gas phase into an aqueous alkali solution.

公开(公告)号：DE10161458A1

公开(公告)日：2003-02-20

申请号：DE10161458

申请日：2001-12-13

Applicant: BASF AG

Inventor： WECK ALEXANDER ,  IFFLAND GABRIELE ,  SCHROEDER JUERGEN ,  MARTAN HANS ,  HENNIG GUNNAR ,  BESLING BERND

IPC: B01J8/02 ,  B01J10/00 ,  B01J10/02 ,  C07C67/08 ,  C07B41/12 ,  C07C57/04 ,  C07C67/02

Abstract: Production of esters by catalyzed reaction of carboxylic acid (or ester) with alcohol in reaction column(s) comprises: (i) feeding acid (or ester) and alcohol into the column spatially separate from each other depending on their boiling points; (ii) formation of an ester by countercurrent reaction at specific temperature and pressure; and (iii) removal of water of reaction from the column as vapor.

公开(公告)号：DE10138150A1

公开(公告)日：2003-02-13

申请号：DE10138150

申请日：2001-08-03

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  MARTAN HANS ,  NESTLER GERHARD ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: C07C51/215 ,  C07C51/235 ,  C07C51/25 ,  C07C51/43 ,  C07C51/44 ,  C07C51/487 ,  C08F20/06 ,  C07C57/07

Abstract: Process for preparation of a water absorbing resin from acrylic acid by its absorption from the reaction gases from catalytic gas phase oxidation of propane, propylene and/or acrolein in an absorption liquid or by separation of the crude acid from the reaction gases by fractional condensation, purification by crystallization, treatment of the crude acrylic acid with an aldehyde trap, (c) separation of pure acrylic acid by distillation, and its radical polymerization is new. A process for preparation of a water absorbing resin involving:(a) production of crude acrylic acid either (a) absorption of acrylic acid from the reaction gases from the catalytic gas phase oxidation of propane, propylene and/or acrolein in an absorption liquid and isolation of crude acrylic acid from acrylic acid loaded absorption liquid, or (a2) by separation of crude acrylic acid from the reaction gases by fractional condensation, and purification by crystallization, (b) treatment of the crude acrylic acid with an aldehyde trap, (c) separation of pure acrylic acid from the crude acrylic acid by distillation, and (d) radical polymerization, optionally after partial neutralization, optionally mixed with other ethylenically unsaturated monomers, of the pure acrylic acid.

公开(公告)号：BR9909302A

公开(公告)日：2000-11-21

申请号：BR9909302

申请日：1999-03-24

Applicant: BASF AG

Inventor： AICHINGER HEINRICH ,  MARTAN HANS ,  NESTLER GERHARD

IPC: C07C27/02 ,  C07C51/44 ,  C07C51/487 ,  C07C51/50 ,  C07C53/10 ,  C07C57/04 ,  C07C57/07 ,  C07C57/075 ,  C07C67/08 ,  C07C69/14 ,  C07C69/54 ,  C07C57/00

公开(公告)号：SG50646A1

公开(公告)日：1998-07-20

申请号：SG1996007648

申请日：1995-11-14

Applicant: BASF AG

Inventor： NESTLER GERHARD ,  MARTAN HANS ,  HERBST HOLGER ,  DARLINGTON JERRY

IPC: C07C57/075 ,  C07C51/44 ,  C07C57/055 ,  C07C57/07 ,  C07C51/50 ,  C07C51/487

Abstract: In a process for purifying crude (meth)acrylic acid, the crude (meth)acrylic acid is worked up by distillation after addition of an organic carboxylic acid hydrazide and, if desired, an organic sulfonic acid.

公开(公告)号：ES2023244B3

公开(公告)日：1992-01-01

申请号：ES88119197

申请日：1988-11-18

Applicant: BASF AG

Inventor： MARTAN HANS ,  SCHWARZMANN MATTHIAS ,  BOEHNING KARL-HEINZ ,  DREYER HEINZ

IPC: B01J23/88 ,  B01J23/00 ,  B01J23/887 ,  B01J23/888 ,  B01J27/192 ,  B01J35/00 ,  B01J37/00 ,  C07B61/00 ,  C07C27/00 ,  C07C27/14 ,  C07C45/35 ,  C07C51/00 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C67/00