The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2005
Filed:
Mar. 21, 2000
Alfred Hagemeyer, Sunnyvale, CA (US);
Harald Werner, Bad Homburg, DE;
Uwe Dingerdissen, Seeheim-Jugenheim, DE;
Klaus Kühlein, Kelkheim, DE;
Günter Dambeck, Selters, DE;
Gerhardt Geiss, Liederbach, DE;
Andrea Rutsch, Mörfelden, DE;
Stephan Weidlich, Frankfurt, DE;
Alfred Hagemeyer, Sunnyvale, CA (US);
Harald Werner, Bad Homburg, DE;
Uwe Dingerdissen, Seeheim-Jugenheim, DE;
Klaus Kühlein, Kelkheim, DE;
Günter Dambeck, Selters, DE;
Gerhardt Geiss, Liederbach, DE;
Andrea Rutsch, Mörfelden, DE;
Stephan Weidlich, Frankfurt, DE;
Abstract
The invention relates to a supported catalyst and the production and use thereof in the synthesis of vinyl acetate in the gaseous phase from ethylene, acetic acid and oxygen, or from gases containing oxygen, whereby the activity and selectivity are simultaneously improved. The catalyst contains palladium, at least one alkali metal compound and optionally one or more catalyst accelerators, in particular, gold, barium and/or cadmium on a porous support. Said support contains at least one reducible metal oxide, in particular oxides of the elements of groups IIIb, IVb, Vb, VIb from the periodic table of elements. Once the support has been loaded with at least one palladium compound, a reduction is carried out at a temperature of >200° C.