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:
Oct. 21, 2008
Filed:
Mar. 20, 2002
Applicant:
Gianfranco Bedetti, Milan, IT;
Inventor:
Gianfranco Bedetti, Milan, IT;
Assignee:
Urea Casale S.A., , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order to produce granules granulometrically polidispersed in a very little range, a fluid bed granulation process of the type comprising the steps of preparing a fluid bed of seeds (S) of the substance to be granulated, having a free surface (P) substantially horizontal; and feeding a continuous flow (L) of a fluid comprising a growth liquid, provides in the fluid bed for a continuous vortex (V) with a substantially horizontal axis, in which an upper zone (Z) of seeds wetting and evaporation of possible solvent contained in the flow (L) and a lower zone (Z) of solidification/consolidation of the growth liquid are identified.