Process for facilitating removal of classified powders
US5088974A · kind A · utility
0Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1989 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Nov 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Removal of classified particles from the classifier apparatus is simplified by the addition of a polymeric dispersant in the slurry, added in an amount substantially in excess of that needed to disperse the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.