公开(公告)号：MY129065A

公开(公告)日：2007-03-30

申请号：MYPI20022776

申请日：2002-07-23

Applicant: BASF AG

Inventor： ZEHNER PETER DR ,  PASTRE JOERG DR ,  STUEER WOLFRAM DR

IPC: C07C27/02 ,  C07C67/02 ,  C07C27/00 ,  C07C45/41 ,  C07C45/46 ,  C07C45/89 ,  C07C49/90 ,  C07C51/083 ,  C07C51/09 ,  C07C51/56 ,  C07C53/02 ,  C07C53/08 ,  C07C67/00 ,  C07C67/08 ,  C07C67/10 ,  C07C67/297 ,  C07C69/14 ,  C07C69/15

Abstract: FORMIC ACID AND A CARBOXYLIC ACID HAVING AT LEA5T TWO CARBON ATOMS AND/OR DERIVATIVES THEREOF ARE PREPARED JOINTLY BY A PROCESS IN WHICH (A) A FORMIC ESTER (I) IS TRANSESTERIFIED WITH A CARBOXYLIC ACID HAVING AT LEAST TWO CARBON ATOMS (II) TO FORM FORMIC ACID (III) AND THE CORRESPONDING CARBOXYLIC ESTER (IV); AND : (B) AT LEAST PART OF THE CARBOXYLIC ESTER (IV) FORMED IN STEP (A) IS CARBONYLATED TO GIVE THE CORRESPONDING CARBOXYLIC ANHYDRIDE (V).

公开(公告)号：CZ20024057A3

公开(公告)日：2003-05-14

申请号：CZ20024057

申请日：2001-06-08

Applicant: BASF AG

Inventor： MACHHAMMER OTTO DR ,  SCHINDLER GOETZ-PETER DR ,  TENTEN ANDREAS DR ,  HARTH KLAUS DR ,  ZEHNER PETER DR ,  MULLER-ENGEL KLAUS JOACHIM DR ,  ROSOWSKI FRANK DR ,  BORGMEIER FRIEDER DR

IPC: C07C27/14 ,  C07B61/00 ,  C07C5/333 ,  C07C11/06 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/07

Abstract: In a process for the preparation of acrolein or acrylic acid or a mixture thereof from propane, the propane is subjected, in a first reaction stage, to a partial dehydrogenation under heterogeneous catalysis to give propene, of the components contained in the product gas mixture formed in the first reaction stage other than propene and propane at least a portion of the molecular hydrogen present is then separated off from said mixture and the product gas mixture is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propylene oxidation, molecular nitrogen being present for diluting the reaction gas mixture during the propylene oxidation.

公开(公告)号：DE69409585D1

公开(公告)日：1998-05-20

申请号：DE69409585

申请日：1994-07-06

Applicant: BASF AG

Inventor： NIEDBALSKI EDMUND J ,  THURMAN LAURANCE R ,  SCHNUR RUDOLF ,  TROETSCH-SCHALLER IRENE DR ,  SCHUSTER LUDWIG DR ,  VOGES DIETER DR ,  ZEHNER PETER DR ,  BITTINS KLAUS DR

IPC: C02F1/78

公开(公告)号：DE4209633A1

公开(公告)日：1993-09-30

申请号：DE4209633

申请日：1992-03-25

Applicant: BASF AG

Inventor： HEDTMANN-REIN CAROLA DR ,  HUEBINGER WOLFGANG DR ,  THEIS RAPHAEL ,  FISCHER HERMANN DR ,  SCHWOEBEL GERD ,  SEITZ FRIEDRICH DR ,  ZEHNER PETER DR

IPC: B01J10/00 ,  C08G65/44

Abstract: A process is claimed for producing polyphenylene ethers (I) by continuous 2-stage catalytic reaction of oxygen with aromatic mono-hydroxy cpd(s). (II). Stage (1) is carried out in a reactor with largely complete back-mixing, and stage (2) in a reactor with partial back-mixing. Also claimed in an appts. for the process, with 2 reactor (systems) as above. Pref. stage 1 is carried out in a ga/liq. reactor (jet reactor) with a jacket tube which is blanked off at the top and in which one or more downwardly directed liq. jets are mounted at the highest point and fed from a liq. pump circuit, so that a gas phase is entrained with and then completely dispersed in the liq.; before starting the liq. circulation, the static reactor is filled with only enough liq. to leave a gas space at the top of the reactor corresp. to the subsequent hold-up under operating conditions, this gas space is filled with inert gas at pressure pl, and the gaseous reactants are only introduced into the reactor when the action of the liq. jets has produced a dispersion of inert gas such that a coherent gas phase no longer exists. The reactor system in stage 1 consists of a jet reactor, a circulating pump and a heat exchanger. Stage 2 is carried out in a continuous flow-tube reactor. USE/ADVANTAGE - The process enables the prodn. of (I) with higher space-time yields (w.r.t. prior-art processes for PPE with comparable mol. wt.), shorter residence times, smaller amts. of off-gas and reduced by-prod. formation

公开(公告)号：MY139227A

公开(公告)日：2009-08-28

申请号：MYPI20030701

申请日：2003-02-27

Applicant: BASF AG

Inventor： MACHHAMMER OTTO DR ,  SCHINDLER GOETZ-PETER DR ,  HARTH KLAUS DR ,  ZEHNER PETER DR

IPC: B01J23/62 ,  C07C5/327 ,  B01J8/02 ,  B01J19/26 ,  B01J27/199 ,  C07B61/00 ,  C07C5/333 ,  C07C11/06 ,  C07C11/08 ,  C07C11/09 ,  C07C45/33 ,  C07C45/35

Abstract: A PROCESS FOR THE CONTINUOUS HETEROGENEOUSLY CATALYZED PARTIAL DEHYDROGENATION OF A HYDROCARBON IN THE GAS PHASE AND IN THE PRESENCE OF MOLECULAR OXYGEN, IN WHICH PART OF THE PRODUCT GAS (5) IS RECIRCULATED TO THE REACTION ZONE, AND A REACTOR FOR CARRYING OUT SUCH A PROCESS. (FIGURE 2)

公开(公告)号：MY128587A

公开(公告)日：2007-02-28

申请号：MYPI20014231

申请日：2001-09-08

Applicant: BASF AG

Inventor： SCHINDLER GOETZ-PETER DR ,  MACHHAMMER OTTO DR ,  HARTH KLAUS DR ,  MUELLER-ENGEL KLAUS JOACHIM DR ,  ZEHNER PETER DR

IPC: B01J21/10 ,  C07C5/333 ,  B01J23/58 ,  B01J23/62 ,  B01J23/63 ,  B01J23/96 ,  B01J38/14 ,  C07B61/00 ,  C07C5/32 ,  C07C11/06

Abstract: IN A PROCESS FOR THE HETEROGENEOUSLY CATALYZED DEHYDROGENATION IN ONE OR MORE REACTION ZONES OF ONE OR MORE DEHYDROGENATABLE CRC JOHYDROCARBONS IN A REACTION GAS MIXTURE COMPRISING THEM, WITH AT LEAST PART OF THE HEAT OF DEHYDROGENATION REQUIRED BEING GENERATED DIRECTLY IN THE REACTION GAS MIXTURE IN AT LEAST ONE REACTION ZONE BY COMBUSTION OF HYDROGEN, THE HYDROCARBON OR HYDROCARBONS AND/OR CARBON IN THE PRESENCE OF AN OXYGEN-CONTAINING GAS, THE REACTION GAS MIXTURE COMPRISING THE DEHYDROGENATABLE HYDROCARBON OR HYDROCARBONS IS BROUGHT INTO CONTACT WITH A LEWIS-ACID DEHYDROGENATION CATALYST WHICH HAS ESSENTIALLY NO I3RONSTED ACIDITY.

公开(公告)号：CH692326A5

公开(公告)日：2002-05-15

申请号：CH115797

申请日：1997-05-20

Applicant: BASF AG

Inventor： NILLES MICHAEL DR ,  ZEHNER PETER DR

IPC: B01F5/06

公开(公告)号：DE19623105A1

公开(公告)日：1997-12-11

申请号：DE19623105

申请日：1996-06-10

Applicant: BASF AG

Inventor： ZEHNER PETER DR ,  NILLES MICHAEL DR

IPC: B01F5/06 ,  B01F5/02

Abstract: Static mixer with a helical mixing element formed from a strip which has been bent along its length to conform to the walls of the vessel, the bends being arranged particularly to run across the width of the strip. Also claimed is the method of using the mixer.

公开(公告)号：DE19623051A1

公开(公告)日：1997-12-11

申请号：DE19623051

申请日：1996-06-10

Applicant: BASF AG

Inventor： ZEHNER PETER DR ,  NILLES MICHAEL DR

IPC: B01F5/06 ,  B01F5/02

Abstract: A static mixer is claimed, in which the liquid components flow along sets of corrugated plates (3,3') so that flows from corresponding members of a set of plates meet at right angles, but in different planes. The plates extend partially over the internal diameter of the cylindrical mixing vessel (2). Also claimed is the process using this mixer.

公开(公告)号：DE3625261A1

公开(公告)日：1988-02-04

申请号：DE3625261

申请日：1986-07-25

Applicant: BASF AG

Inventor： ZEHNER PETER DR ,  HOFFMANN HERWIG DR ,  RICHTER WOLFGANG DR ,  STUETZER DIETER DR ,  STROHMEYER MAX DR ,  WALZ HELMUT DR ,  WEIPPERT ERICH DR

IPC: C07B61/00 ,  B01J31/00 ,  C07C45/00 ,  C07C45/50 ,  C07C47/02 ,  C07C67/00