EP 1171237 A1 20020116 - VANADIUM PHOSPHORUS OXIDE CATALYST HAVING A THERMALLY CONDUCTIVE SUPPORT
Title (en)
VANADIUM PHOSPHORUS OXIDE CATALYST HAVING A THERMALLY CONDUCTIVE SUPPORT
Title (de)
VANADIUM-PHOSPHOROXID-KATALYSATOR MIT EINEM THERMISCH LEITFÄHIGEN TRÄGER
Title (fr)
CATALYSEUR A BASE D'OXYDE DE PHOSPHORE ET DE VANADIUM SUR SUPPORT THERMOCONDUCTEUR
Publication
Application
Priority
- US 0009905 W 20000414
- US 12941199 P 19990415
Abstract (en)
[origin: WO0062926A1] Beta-silicon carbide particles impregnated with a vanadyl pyrophosphate oxidation catalyst are prepared by forming a heterogeneous reaction mixture of suspended vanadium (IV) phosphate (via hydrochloric acid digestion of V2O5 and H3PO4 in an aqueous solvent or via heating vanadium pentoxide with at least one substantially anhydrous unsubstituted alcohol having 1-10 carbon atoms, 1-3 hydroxyl groups and free from olefinic double bonds to form a feed of vanadium pentoxide reduced to a valence between 4 and 4.6, and then contacting the feed with a solution of orthophosphoric acid and at least one unsubstituted alcohol as described above), adding particulate beta-silicon carbide to the hererogeneous reaction mixture under agitation at moderated temperature between 40 DEG C and 120 DEG C, followed by drying, washing and calcining the particles thus formed.
IPC 1-7
IPC 8 full level
C07D 307/60 (2006.01); B01J 27/198 (2006.01); B01J 27/224 (2006.01); B01J 27/24 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); C07B 61/00 (2006.01); C07C 51/215 (2006.01)
CPC (source: EP KR)
B01J 23/002 (2013.01 - EP); B01J 27/198 (2013.01 - EP); B01J 27/224 (2013.01 - EP); B01J 27/24 (2013.01 - EP KR); B01J 35/30 (2024.01 - KR); B01J 37/0009 (2013.01 - KR); C07C 51/16 (2013.01 - KR); C07C 51/215 (2013.01 - EP); B01J 2523/00 (2013.01 - EP)
C-Set (source: EP)
Designated contracting state (EPC)
BE DE NL
DOCDB simple family (publication)
WO 0062926 A1 20001026; AU 4345700 A 20001102; AU 4345800 A 20001102; CN 1347342 A 20020501; EA 200101087 A1 20020425; EP 1171237 A1 20020116; HK 1046251 A1 20030103; JP 2002542016 A 20021210; KR 20010108505 A 20011207; WO 0062925 A1 20001026
DOCDB simple family (application)
US 0009906 W 20000414; AU 4345700 A 20000414; AU 4345800 A 20000414; CN 00806259 A 20000414; EA 200101087 A 20000414; EP 00923307 A 20000414; HK 02107814 A 20021029; JP 2000612055 A 20000414; KR 20017013095 A 20011013; US 0009905 W 20000414