EP 1237650 A1 20020911 - VINYL ACETATE CATALYST COMPRISING METALLIC PALLADIUM AND GOLD AND PREPARED UTILIZING SONICATION
Title (en)
VINYL ACETATE CATALYST COMPRISING METALLIC PALLADIUM AND GOLD AND PREPARED UTILIZING SONICATION
Title (de)
MIT ULTRASCHALL HERGESTELLTER PALLADIUM UND GOLD ENTHALTENDER KATALYSATOR ZUR HERSTELLUNG VON VINYLACETAT
Title (fr)
CATALYSEUR DE L'ACETATE DE VINYLE COMPRENANT DU PALLADIUM METALLIQUE ET DE L'OR ET PREPARE PAR SONICATION
Publication
Application
Priority
- US 0028723 W 20001017
- US 44191199 A 19991117
Abstract (en)
[origin: WO0136091A1] A catalyst effective for the production of vinyl acetate by reaction of ethylene, oxygen and acetic acid, comprising a porous support on the porous surfaces of which is deposited catalytically effective amounts of metallic palladium and gold, and optionally, one or more additional catalytically active metals such as copper, prepared by steps comprising impregnating the support with one or more aqueous solutions, of water-soluble compounds of the metals, fixing the metals on the support as water-insoluble compounds in one or more fixing steps by reaction with an appropriate alkaline compound, at least one of said fixing steps being carried out in a solution of the alkaline compound in which the impregnated support is immersed, while sonicating, i.e., applying ultrasound waves to, such solution, and reducing the water-insoluble compounds of the catalytically active metals to their free metallic form.
IPC 1-7
B01J 23/52; B01J 23/89; B01J 23/44; B01J 37/34; B01J 37/02; C07C 67/055; C07C 69/01
IPC 8 full level
B01J 23/52 (2006.01); B01J 23/89 (2006.01); B01J 31/28 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); B01J 37/16 (2006.01); B01J 37/34 (2006.01); C07B 61/00 (2006.01); C07C 67/055 (2006.01); C07C 69/15 (2006.01)
CPC (source: EP KR)
B01J 23/52 (2013.01 - EP KR); B01J 23/8926 (2013.01 - EP KR); B01J 37/0201 (2013.01 - KR); B01J 37/343 (2013.01 - EP KR); C07C 67/055 (2013.01 - EP)
Citation (search report)
See references of WO 0136091A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0136091 A1 20010525; BR 0015179 A 20020618; CA 2389448 A1 20010525; CN 1391496 A 20030115; CZ 20021630 A3 20021016; EP 1237650 A1 20020911; JP 2003513788 A 20030415; KR 20020048435 A 20020622; MX PA02004920 A 20020918
DOCDB simple family (application)
US 0028723 W 20001017; BR 0015179 A 20001017; CA 2389448 A 20001017; CN 00815813 A 20001017; CZ 20021630 A 20001017; EP 00970972 A 20001017; JP 2001538074 A 20001017; KR 20027006293 A 20020516; MX PA02004920 A 20001017