Fluid bed granulation process
US7438729B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2002 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Jun 17, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/1923
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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 (S1) 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 (Z1) of seeds wetting and evaporation of possible solvent contained in the flow (L) and a lower zone (Z2) of solidification/consolidation of the growth liquid are identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.