Pump for loop reactor
US9308514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2014 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Nov 17, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/181
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates the use of a pump in a loop reactor for the production of polyethylene, as well as a reactor comprising such pump and methods for producing polyolefin by means of such reactor. The pump according to the invention is characterized in that it is an axial flow impeller circulation pump, wherein the impeller comprises 6 blades and wherein the pump is fixed on a spring supported frame. Use of the pump according to the present invention allows for preparation of homogeneous polyethylene products that meet high quality standards from the complicated ethylene polymerization mixtures while at the same time being produced with low energy consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.