Method for controlling removal of polymerization reaction effluent
US5455314A · kind A · utility
330Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In withdrawing a reaction slurry from a polymerization reactor wherein solid particles in the slurry must be maintained in solution to prevent solidification, a redundant effluent line is provided to remove the slurry in the event the primary line becomes plugged. In use the primary and redundant lines are controlled in different manners such that a v-notch ball valve in the primary line is manipulated continuously to remove effluent while maintaining stable reactor conditions, and a control valve in the redundant line is manipulated intermittently as a backup for the primary control valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.