公开(公告)号：AT509902T

公开(公告)日：2011-06-15

申请号：AT03711919

申请日：2003-03-04

Applicant: BASF SE

Inventor： SCHROEDER JUERGEN ,  MUELLER-ENGEL KLAUS ,  SCHLIEPHAKE VOLKER ,  HAMMON ULRICH ,  DIEHL VOLKER ,  JAEGER ULRICH

IPC: C07C67/54 ,  B08B9/08 ,  C07C51/44 ,  C07C51/46 ,  C07C57/07 ,  C07C69/54

Abstract: In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas is passed through the column in countercurrent to the basic liquid at an average gas phase differential pressure over all trays of at least 0.5 mbar/tray.

公开(公告)号：AT450492T

公开(公告)日：2009-12-15

申请号：AT04763312

申请日：2004-07-17

Applicant: BASF SE

Inventor： SCHLIEPHAKE VOLKER ,  HAMMON ULRICH ,  BECHER ROLF-DIETER ,  MUELLER-ENGEL KLAUS

IPC: C07C45/35 ,  C07C45/33 ,  C07C45/90 ,  C07C47/22 ,  C07C51/25 ,  C07C51/64 ,  C07C57/04

Abstract: Process for operating a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound using compressed air as the oxygen source which is filtered before its compression.

公开(公告)号：AT399150T

公开(公告)日：2008-07-15

申请号：AT04726111

申请日：2004-04-07

Applicant: BASF SE

Inventor： MACHHAMMER OTTO ,  CRONE SVEN ,  BORGMEIER FRIEDER ,  MUELLER-ENGEL KLAUS ,  ADAMI CHRISTOPH ,  DIEFENBACHER ARMIN

IPC: C07C57/05 ,  C07C51/215

Abstract: Disclosed is a method for the heterogeneously catalyzed partial direct oxidation of propane and/or isobutane. According to said method, target product is separated from the product gas mixture obtained in the reaction stage in a reprocessing stage, the remaining product gas mixture is divided into two partial quantities having the same composition, one partial quantity is redirected into the reaction stage while the other partial quantity is discharged, and both the reaction stage and the reprocessing stage are operated at an increased pressure.