Method and apparatus for preparing and supplying catalyst slurry to a polymerization reactor
US7906597B2 · kind B2 · utility
21Cited by
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22Claims
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Assignee
Inventor
Key dates
| Filing date | Feb 14, 2005 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Nov 20, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8593
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to an apparatus for preparing and supplying catalyst to an ethylene slurry loop polymerisation reactor and to an apparatus for controlling the injection of catalyst slurry in a polymerization reactor wherein polyethylene is prepared. The present invention a Iso relates to a method for optimising catalyst supply to a polymerisation reactor. The diluted catalyst is transferred to the reactor (1) using a membrane pump (5) controllable in function of the concentration of a reactant in said reactor (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.