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:
Nov. 19, 2013
Filed:
May. 30, 2008
Applicants:
Alfred Hagemeyer, Bad Aibling, DE;
Gerhard Mestl, München, DE;
Peter Scheck, Gilching, DE;
Inventors:
Assignee:
Sued-Chemie IP GmbH & Co. KG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/04 (2006.01); B01J 23/00 (2006.01); B01J 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A shell catalyst for producing vinyl acetate monomer (VAM), comprising an oxidic porous catalyst support, formed as a shaped body, with an outer shell in which metallic Pd and Au are contained. To provide a shell catalyst for producing VAM which has a relatively high activity and can be obtained at relatively low cost, the catalyst support is doped with at least one oxide of an element selected from the group consisting of Li, P, Ca, V, Cr, Mn, Fe, Sr, Nb, Ta, W, La and the rare-earth metals.