公开(公告)号：BRPI0710712A2

公开(公告)日：2011-08-16

申请号：BRPI0710712

申请日：2007-04-27

Applicant: BASF AG

Inventor： LAUTENSACK THOMAS ,  ALLMANN HANS-MARTIN ,  WILMER HAGEN

IPC: C07C51/265 ,  B01J23/22 ,  B01J35/00 ,  C07C63/16

Abstract: Method for gas phase oxidation comprises directing a gaseous flow comprising at least an aromatic hydrocarbon and molecular oxygen through at least two catalyst layers that are arranged in current direction, where the activity of the catalyst in the border of the catalyst layer is different from one another, and arranging a moderator layer between two catalyst layers that are arranged one behind the other in the flow direction of the gaseous flow. Method for gas phase oxidation comprises directing a gaseous flow comprising at least an aromatic hydrocarbon and molecular oxygen through at least two catalyst layers that are arranged in current direction, where the activity of the catalyst in the border of the catalyst layer is different from one another, and arranging a moderator layer between two catalyst layers that are arranged one behind the other in the flow direction of the gaseous flow, where the moderator layer is catalytically less active than the catalysts adjoining upstream and downstream or is catalytically inactive; and the highly active catalyst layer is situated downstream to the moderator layer as the catalyst layer upstream to the moderator layer.

公开(公告)号：DE102005035978A1

公开(公告)日：2007-02-01

申请号：DE102005035978

申请日：2005-07-28

Applicant: BASF AG

Inventor： DOBNER CORNELIA ,  DUDA MARK ,  RAICHLE ANDREAS ,  WILMER HAGEN ,  ROSOWSKI FRANK ,  HOELZLE MARKUS

IPC: B01J27/185 ,  B01J23/847 ,  B01J37/03 ,  C07D307/60

Abstract: Catalysts comprising a catalytically active composition, the catalytically active composition comprising vanadium, phosphorus, iron and oxygen, wherein the catalytically active composition has an iron:vanadium atomic ratio of 0.005 to

公开(公告)号：DE102004027414A1

公开(公告)日：2005-12-29

申请号：DE102004027414

申请日：2004-06-04

Applicant: BASF AG

Inventor： PETZOLDT JOCHEN ,  WILMER HAGEN ,  ROSOWSKI FRANK

IPC: B01J23/22 ,  C07B41/08 ,  C07D213/80 ,  C07D213/807