EP 2061596 A1 20090527 - CATALYSTS FROM VPO PRECURSORS HAVING A DEFINED PARTICLE SIZE DISTRIBUTION, PRODUCTION AND USE THEREOF
Title (en)
CATALYSTS FROM VPO PRECURSORS HAVING A DEFINED PARTICLE SIZE DISTRIBUTION, PRODUCTION AND USE THEREOF
Title (de)
KATALYSATOREN AUS VPO-VORSTUFEN MIT DEFINIERTER TEILCHENGRÖSSENVERTEILUNG, DEREN HERSTELLUNG UND VERWENDUNG
Title (fr)
CATALYSEURS À BASE DE PRÉCURSEURS VPO PRÉSENTANT UNE GRANULOMÉTRIE DÉFINIE, LEUR PRODUCTION ET LEUR UTILISATION
Publication
Application
Priority
- EP 2007058167 W 20070807
- EP 06119373 A 20060823
- EP 07788271 A 20070807
Abstract (en)
[origin: WO2008022911A1] 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 d<SUB>50, primary particles</SUB> of less than 1.3 µm in an aqueous solution and which are provided in the form of agglomerates having an average diameter d<SUB>50, agglomerates</SUB> 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.
IPC 8 full level
B01J 27/198 (2006.01); B01J 35/02 (2006.01); B01J 37/00 (2006.01); C07C 51/215 (2006.01); C07C 57/145 (2006.01)
CPC (source: EP)
B01J 23/002 (2013.01); B01J 27/198 (2013.01); B01J 35/30 (2024.01); B01J 35/40 (2024.01); B01J 37/0045 (2013.01); C07C 51/215 (2013.01); B01J 35/23 (2024.01); B01J 37/343 (2013.01); B01J 2523/00 (2013.01)
Citation (search report)
See references of WO 2008022911A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 2007058167 W 20070807; EP 07788271 A 20070807