Process and apparatus for continuous wet granulation of powder material
US7910030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Jan 15, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B2009/168
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An apparatus for wet granulating a powder material comprises: —a barrel having a granulation chamber and being provided with a first inlet (1) for receiving said powder material and for supplying it to said granulation chamber and with a second inlet (2) for receiving a granulating liquid and for supplying it to said granulation chamber, said granulation having an aperture (9) for discharge of granules from said barrel, and —a transporting means (S) for advancing said powder material toward the end of said granulation chamber while granulating it with the aid of said granulating liquid, said transporting means (S) comprising a first transport zone (4) at its rear end, an agglomeration zone (5) downstream from the first transport zone (4) and a second transport zone (8) at its front end, said first inlet (1) and said second inlet (2) being positioned above the first transport zone (4), wherein said aperture (9) has a shape tightly fitting the terminal portion of the transporting means (S) for directly discharging said granules from the granulation chamber. The apparatus is useful for continuously wet granulating biologically-active ingredient formulations, chemicals, detergents and …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.