Method and apparatus for feeding a catalyst
US5433924A · kind A · utility
8Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1994 |
| Grant date | Jul 18, 1995 |
| Priority date | — |
| Expiry date | Mar 31, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2265/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst feed system is described for intermittent delivery of supported and/or prepolymerized supported catalyst to a polymerization reactor. The system incorporates valves with cylindrical sealing surfaces as well as a venting stage incorporating a filter arranged such that it is self-cleaning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.