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:
Jan. 08, 1991
Filed:
Jan. 17, 1989
Applicant:
Inventors:
Luigi Cavalli, Novara, IT;
Renzo Nardini, Vercelli, IT;
Assignee:
Ausimont, S.r.l., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; C01B / ;
U.S. Cl.
CPC ...
502 26 ; 423535 ; 502 21 ; 502 25 ; 502 34 ; 502243 ; 502247 ; 502527 ;
Abstract
A process for preparing a high-density and, low-silica catalyst, supported on a siliceous matrix, based on vanadium, oxygen and alkali metals, wherein the V.sub.2 O.sub.5 content ranges from 6 to 9% by weight, the K.sub.2 O content ranges from 8.5 to 12% by weight and the particle density ranges from 0.90 to 1.40 g/cm.sup.3 and wherein furthermore: