EP 2137104 A2 20091230 - POLYNARY VANADYL PYROPHOSPHATE
Title (en)
POLYNARY VANADYL PYROPHOSPHATE
Title (de)
POLYNÄRES VANADYLPYROPHOSPHAT
Title (fr)
PYROPHOSPHATE DE VANADYLE POLYNAIRE
Publication
Application
Priority
- EP 2008052948 W 20080312
- DE 102007012723 A 20070316
Abstract (en)
[origin: WO2008113730A2] The invention relates to a novel polynary vanadyl pyrophosphate of general formula (VO)<SUB>a</SUB>(M<SUB>1-b</SUB>V<SUB>b</SUB>)<SUB>2</SUB>(P<SUB>2</SUB>O<SUB>7</SUB>)<SUB>c</SUB> (I), wherein M represents one or more metals selected from the group including Ti, Zr, Hf, Cr, Fe, Co, Ni, Ru, Rh, Pd, Cu, Zn, B, Al, Ga and In, a has a value of 0.5 to 1.5, b has a value of 0 to 0.9, c has a value of 1.5 to 2.5, said novel compound having a crystal structure and being characterized by defined diffraction reflexes in powder X-ray diffraction. A preferred representative is (VO)Fe<SUB>2</SUB>(P<SUB>2</SUB>O<SUB>7</SUB>)<SUB>2</SUB>. The vanadyl pyrophosphates are suitable as gas phase oxidation catalysts, e.g. for producing maleic anhydride from a hydrocarbon with at least four carbon atoms.
IPC 8 full level
C01B 25/42 (2006.01); B01J 27/198 (2006.01); C07C 51/215 (2006.01); C07C 57/145 (2006.01); C07D 307/34 (2006.01)
CPC (source: EP US)
B01J 23/002 (2013.01 - EP US); B01J 27/198 (2013.01 - EP US); B01J 35/19 (2024.01 - EP US); B01J 35/30 (2024.01 - EP US); C01B 25/42 (2013.01 - EP US); C07C 51/215 (2013.01 - EP US); C07D 307/34 (2013.01 - EP US); B01J 35/612 (2024.01 - EP US); B01J 37/0045 (2013.01 - EP US); B01J 2523/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2008113730A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102007012723 A1 20080918; EP 2137104 A2 20091230; JP 2010524809 A 20100722; US 2010105927 A1 20100429; WO 2008113730 A2 20080925; WO 2008113730 A3 20081224
DOCDB simple family (application)
DE 102007012723 A 20070316; EP 08717694 A 20080312; EP 2008052948 W 20080312; JP 2009554002 A 20080312; US 53148508 A 20080312