Method for producing a catalyst or pre catalyst suitable for assisting in the production of alcanoatos of alquenila,Composition for catalyzing the production of a alcanoato of alquenila and method of production of alcanoatos of alquenila

摘要

"Method for producing a catalyst or pre catalyst suitable for assisting in the production of alcanoatos of alquenila,The composition Pope catalyze the production of a alcanoato of alquenila and method of production of alcanoatos of alquenila ".The present invention relates to at least four different aspects related to the structure of the catalysts.Methods of manufacture of these catalysts and methods of using those catalysts to produce alcanoatos of alquenila.Separately or together, the various aspects of the invention relate to improve the production of alcanoatos of alquenila and VA in particular.Including the reduction of by-products and production efficiency is improved.A first aspect of the present invention refers to a single catalyst of palladium / gold or pre catalyst (optionally calcined) comprising rhodium or other metal.A second aspect relates to a catalyst of palladium / gold or pre catalyst that is based on a support material in layers, where a layer of support material is substantially free ofCatalyst components. A third aspect relates to a catalyst of palladium / gold or pre catalyst on a support material containing zirconia.A fourth aspect relates to a catalyst of palladium / gold or pre catalyst that is produced from the catalyst components substantially free of chlorine.