Process for recycling inert particulate materials
US5116940A · kind A · utility
8Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1991 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Oct 30, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00761
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for recycling inert particulate materials used in sticky polymer polymerization reactors by discharging the sticky polymer having unbound inert material on its surface into a product hold tank maintained at a lower pressure than the polymerization reactor and thereafter contacting said polymer with a sweep gas and at a velocity sufficient to remove the inert particulate material which is then recycled to the polymerization reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.