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. 22, 2005
Filed:
May. 15, 2003
Applicants:
Arie Bortinger, Ridgewood, NJ (US);
Gianluca Mazzoni, Torre Boldone, IT;
Tiziana Monti, Borgo Tossignano, IT;
Inventors:
Arie Bortinger, Ridgewood, NJ (US);
Gianluca Mazzoni, Torre Boldone, IT;
Tiziana Monti, Borgo Tossignano, IT;
Assignees:
Scientific Design Company, Inc., Little Ferry, NJ (US);
Lonza S.p.A., Bergano, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J027/198 ; B01J027/14 ; B01J027/188 ; B01J027/19 ; B01J027/192 ;
U.S. Cl.
CPC ...
Abstract
A process for preparing a catalyst for maleic anhydride production wherein a +5 vanadium compound such as VO, an anhydrous phosphoric acid, and optionally promoters are admixed in an organic alcohol solvent, the admixture is rapidly brought to reflux and thereafter refluxed to reduced the vanadium compound to the desired degree, the reflux mixture is cooled, precursor crystals are separated by filtration and then dried and calcined.