Method and apparatus for the classification of solid particles
US5908115A · kind A · utility
3Cited by
19References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Feb 11, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B13/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for the classification of solid particles, in particular powdery catalytic components for the polymerization of olefins, which comprises sending solid particles suspended in a transporting gas flow through a screening device. Immediately upstream to the screening device there is an auxiliary fluidized bed classifier, in which the top of the bed is at the level of the lower part of the screening device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.