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:
May. 11, 2004
Filed:
Apr. 04, 2002
Applicant:
Inventors:
Stefania Albonetti, Imola, IT;
Fabrizio Cavani, Modena, IT;
Simone Ligi, Montefelcino, IT;
Gianluca Mazzoni, Torre Boldone, IT;
Assignee:
Lonza S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 2/7198 ;
U.S. Cl.
CPC ...
B01J 2/7198 ;
Abstract
A process for the preparation of a vanadium/phosphorus mixed oxide catalyst precursor is described, comprising the reaction of a vanadium source in selected organic media in the presence of a phophorus source. The medium comprises: (a) isobutyl alcohol or a mixture of isobutyl alcohol and benzyl alcohol and (b) a polyol in the weight ratio (a) to (b) of 99:1 to 5:95. After its activation, the vanadium/phosphorus mixed oxide catalyst precursor is an excellent catalyst in the conversion of non-aromatic hydrocarbons like n-butane to malic anhydride.