公开(公告)号：EP2056963A1

公开(公告)日：2009-05-13

申请号：EP07788269.4

申请日：2007-08-07

Applicant: BASF SE

Inventor： RAICHLE, Andreas ,  DOBNER, Cornelia ,  SCHERHAG, Gunter ,  GRASSLER, Thomas ,  KARCHES, Martin ,  SCHNEIDER, Christian ,  WALZEL, Peter ,  MONSE, Karsten ,  SCHALDACH, Gerhard

IPC: B01J27/198 ,  B01J35/02 ,  B01J37/00 ,  B01J23/00

CPC classification number: B01J35/023 ,  B01J21/08 ,  B01J23/002 ,  B01J27/198 ,  B01J35/1014 ,  B01J37/0045 ,  B01J2523/00 ,  B01J2523/51 ,  B01J2523/55 ,  C07C51/215 ,  C07C57/145

Abstract: Disclosed are a catalyst precursor or catalyst and a method for the production thereof. According to said method, a) a suspension is produced which contains a vanadium, phosphorus, and oxygen-containing precursor (VPO precursor) as well as silicon oxide, b) the suspension is spray dried, and c) if necessary, the catalyst precursor obtained in step b) is transformed into the catalyst by means of a thermal treatment. The disclosed method is characterized in that silicon oxide is added at amounts ranging from 3 to 25 percent by weight relative to the dry matter of the thermally treated catalyst, while the ratio (d50, primary particles/ d50, silicon oxide) between the average diameter of the ultrasonically dispersed primary VPO precursor particles in an aqueous solution d50, primary particles and the average diameter of the silicon oxide particles d50, silicon oxide ranges from 30 to 170, the average diameter of the primary VPO precursor particles and the average diameter of the silicon oxide particles being determined by means of laser diffraction according to ISO 13320. Also disclosed is the use of said catalyst for gas phase oxidation of hydrocarbons.

公开(公告)号：EP2061596A1

公开(公告)日：2009-05-27

申请号：EP07788271.0

申请日：2007-08-07

Applicant: BASF SE

Inventor： RAICHLE, Andreas ,  DOBNER, Cornelia ,  SCHERHAG, Gunter ,  GRASSLER, Thomas ,  KERN, Andreas ,  KARCHES, Martin ,  WALZEL, Peter ,  MONSE, Karsten ,  SCHALDACH, Gerhard

IPC: B01J27/198 ,  C07C51/215 ,  B01J35/02 ,  B01J37/00 ,  C07C57/145

CPC classification number: B01J35/023 ,  B01J23/002 ,  B01J27/198 ,  B01J35/0013 ,  B01J35/002 ,  B01J37/0045 ,  B01J37/343 ,  B01J2523/00 ,  C07C51/215 ,  C07C57/145 ,  B01J2523/51 ,  B01J2523/55

Abstract: Disclosed are a catalyst precursor or catalyst and a method for the production thereof. According to said method, a) a suspension is produced which contains a vanadium, phosphorus, and oxygen-containing precursor (VPO precursor), the ultrasonically dispersed particles of which have an average diameter d50, primary particles of less than 1.3 µm in an aqueous solution and which are provided in the form of agglomerates having an average diameter d50, agglomerates of 2 to 20 µm in water, the average diameters of the primary particles and the agglomerates of the VPO precursor being determined by means of laser diffraction according to ISO 13320, b) the suspension is spray dried, and c) if necessary, the catalyst precursor obtained in step b) is transformed into the catalyst by means of a thermal treatment. Also disclosed is the use of said catalyst for gas phase oxidation of hydrocarbons.