公开(公告)号：EP1968743B1

公开(公告)日：2011-03-23

申请号：EP06830762.8

申请日：2006-12-20

Applicant: BASF SE

Inventor： NETO, Samuel ,  HIBST, Hartmut ,  ROSOWSKI, Frank ,  STORCK, Sebastian ,  ZÜHLKE, Jürgen

IPC: B01J23/68 ,  C07C51/265 ,  C07C51/31 ,  B01J37/08 ,  B01J37/02 ,  B01J35/00

CPC classification number: B01J23/682 ,  B01J23/002 ,  B01J23/96 ,  B01J27/198 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/0018 ,  B01J37/0219 ,  B01J37/0223 ,  B01J37/08 ,  B01J2523/00 ,  C01G31/006 ,  C01P2002/72 ,  C01P2006/12 ,  C07C51/265 ,  C07C51/313 ,  Y02P20/584 ,  C07C63/16 ,  B01J2523/18 ,  B01J2523/3712 ,  B01J2523/55

Abstract: The invention relates to a method for converting a precatalyst which comprises a inert carrier, an organic carbon source and a silver and vanadium containing multimetal oxide to a gas phase oxidation catalyst comprising the inert carrier and a catalytically active silver-vanadium oxide bronze. According to said method, the precatalyst is thermally treated at a temperature of at least 350 °C in a gas atmosphere containing less than 10 % by volume of oxygen. Before the treatment, the carbon source quantity in the precatalyst is adjusted to a value below the critical quantity. The carbon quantity is reduced by separation at a temperature of 80 to 200 °C in an oxygen-containing atmosphere and concurrent decomposition of a portion of the carbon source. The catalysts so obtained are used for partial gas phase oxidation of aromatic hydrocarbons to aldehydes, carboxylic acids and/or carboxylic acid anhydrides.

公开(公告)号：EP2274265A1

公开(公告)日：2011-01-19

申请号：EP09730240.0

申请日：2009-04-07

Applicant: BASF SE

Inventor： DOBNER, Cornelia Katharina ,  DIETRICH, Ulf ,  MACKEWITZ, Thomas ,  STORCK, Sebastian ,  WILMER, Hagen ,  ROSOWSKI, Frank ,  TENTEN, Andreas

IPC: C07C51/265 ,  C07C63/16 ,  C07C63/24 ,  C07C63/26 ,  C07C63/06 ,  C07C63/40 ,  B01J23/66

CPC classification number: C07C51/265 ,  C07C63/16

Abstract: The invention relates to a method for starting a gas phase oxide reactor that contains a bed of a first catalyst, the active mass thereof containing a catalytically active silver vanadium oxide bronze, and at least one bed of a second catalyst, the catalytically active mass thereof containing vanadium pentoxide and titanium dioxide, and said reactor can be tempered by means of a heat transfer medium. In the operational mode, a gas flow that contains a charge C
op of a hydrocarbon and molecular oxygen passes through the reactor via the bed of the first and the second catalyst, the heat transfer medium being at a temperature T
op . In order to start, a) a gas flow containing an initial charge C
o that is lower than C
op is guided through the reactor at an initial temperature T
o of the heat transfer medium that is lower than T
op and b) the temperature of the heat transfer medium is brought to T
op and the charge of the gas flow is brought to C
op . Said method combines a short starting time without exceeding emission or quality specifications, with a long catalyst service life, a high yield and a low formation of axillary products.

公开(公告)号：EP1968743A1

公开(公告)日：2008-09-17

申请号：EP06830762.8

申请日：2006-12-20

Applicant: BASF SE

Inventor： NETO, Samuel ,  HIBST, Hartmut ,  ROSOWSKI, Frank ,  STORCK, Sebastian ,  ZÜHLKE, Jürgen

IPC: B01J23/68 ,  C07C51/265 ,  C07C51/31 ,  B01J37/08 ,  B01J37/02 ,  B01J35/00

CPC classification number: B01J23/682 ,  B01J23/002 ,  B01J23/96 ,  B01J27/198 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/0018 ,  B01J37/0219 ,  B01J37/0223 ,  B01J37/08 ,  B01J2523/00 ,  C01G31/006 ,  C01P2002/72 ,  C01P2006/12 ,  C07C51/265 ,  C07C51/313 ,  Y02P20/584 ,  C07C63/16 ,  B01J2523/18 ,  B01J2523/3712 ,  B01J2523/55

Abstract: The invention relates to a method for converting a precatalyst which comprises a inert carrier, an organic carbon source and a silver and vanadium containing multimetal oxide to a gas phase oxidation catalyst comprising the inert carrier and a catalytically active silver-vanadium oxide bronze. According to said method, the precatalyst is thermally treated at a temperature of at least 350 °C in a gas atmosphere containing less than 10 % by volume of oxygen. Before the treatment, the carbon source quantity in the precatalyst is adjusted to a value below the critical quantity. The carbon quantity is reduced by separation at a temperature of 80 to 200 °C in an oxygen-containing atmosphere and concurrent decomposition of a portion of the carbon source. The catalysts so obtained are used for partial gas phase oxidation of aromatic hydrocarbons to aldehydes, carboxylic acids and/or carboxylic acid anhydrides.