公开(公告)号：ZA200508942B

公开(公告)日：2007-04-25

申请号：ZA200508942

申请日：2005-11-04

Applicant: BASF AG

Inventor： SCHINDLER GOETZ-PETER ,  OTTO MACHAMMER ,  JOACHIM MUELLER-ENGEL KLAUS ,  CLAUS HECHLER ,  JOCHEN PETZOLDT ,  CHRISTOPH ADAMI ,  KLAUS HARTH

IPC: B01J23/62 ,  B01J23/63 ,  C07C20090101 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C51/25 ,  C07C253/26 ,  C07C255/08

Abstract: Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon involves partially dehydrogenating at least one saturated hydrocarbon under heterogeneous catalysis and using the resulting product gas mixture for heterogeneously catalyzed partial oxidation and/or ammoxidation of the partially dehydrogenated hydrocarbon present in the product gas mixture. Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon involves: (a) dehydrogenating a saturated hydrocarbon (preferably propane or isobutene) using a heterogeneous catalyst in the gas phase to form a product gas mixture, comprising one or more partially dehydrogenated hydrocarbon, leaving constituents present in the product gas mixture, other than the saturated hydrocarbon and the partially dehydrogenated hydrocarbon; or partly or fully removing them to obtain a product gas mixture; and (b) partial oxidizing and/or ammoxidizing the product gas mixtures using one or more heterogeneous catalyst. The method includes at least one mechanical separation operation so that solid particles present in the gas mixtures can be removed.

公开(公告)号：ZA200710708B

公开(公告)日：2009-07-29

申请号：ZA200710708

申请日：2007-12-10

Applicant: BASF AG

Inventor： ARMIN DIEFENBACHER ,  CLAUS HECHLER ,  CHRISTOPH ADAMI ,  MARTIN DIETERLE

IPC: C07C20090101

公开(公告)号：ZA200605102B

公开(公告)日：2007-12-27

申请号：ZA200605102

申请日：2006-06-21

Applicant: BASF AG

Inventor： CLAUS HECHLER ,  GERHARD OLBERT ,  DIETMAR LOWEN

IPC: C07C20090101 ,  C07C51/21

Abstract: Method for preparing (meth)acrolein and/or (meth)acrylic acid by partial gas-phase oxidation of 3-4C precursors in presence of a heterogeneous, particulate catalyst (A). Method for preparing (meth)acrolein and/or (meth)acrylic acid by partial gas-phase oxidation of 3-4C precursors in presence of a heterogeneous, particulate catalyst (A). Oxidation is done in a reactor having 2 or more vertical thermal plates (1), arranged in parallel and with gaps (2) between them, where (2) contain the catalyst and the gaseous reaction mixture is supplied to (2). The new feature is that the method is monitored, controlled and/or regulated through one or more temperature measurements, taken in one or more (2), at one or more measuring sites, distributed over the height of each (2). An independent claim is also included for a method of incorporating temperature-measuring devices into a reactor, on the same side of the reactor as the feed line for supplying gaseous reaction mixture.

公开(公告)号：ZA200600631B

公开(公告)日：2007-03-28

申请号：ZA200600631

申请日：2006-01-23

Applicant: BASF AG

Inventor： GERHARD OLBERT ,  CLAUS HECHLER

IPC: B01J20090101 ,  C07C20090101