Gas phase fluidized bed polyolefin polymerization process using sound waves
US5461123A · kind A · utility
71Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Jul 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/901
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved method for polymerizing one or more polyolefins in the presence of a transition metal catalyst in at least one gas phase fluidized bed reactor, the improvement comprises generating at least one low frequency, high pressure sound wave inside a reactor system, which wave has sufficient frequency and pressure to dislodge and/or prevent particle build-up on interior surfaces of the reactor system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.