1310295-A1 is referenced by 42 patents and cites 3 patents.

A settling leg for a polymerisation reactor connected to the lower part of a loop reactor 1. A conduit 2 is welded to the loop reactor and leads to upper block valve 3 and lower block valve 4. Downstream of the lower block valve 4 is a further conduit 5 which leads to a lower region 6 and to a product take off (PTO) valve 7. Conduit 5 has a significantly greater cross-sectional area than conduit 2. In use, the block valves 3 and 4 are always open to allow slurry from the reactor loop to enter the settling leg. The PTO valve 7 is regularly opened to allow the settled polyethylene 'fluff' to be rapidly expelled along conduit 8. The greater area of conduit 5 significantly increases the settling rate and polymer concentration of the polyethylene 'fluff'.

Title
Polymerisation reactor
Application Number
EP20010309185 20011030
Publication Number
1310295 (A1)
Application Date
October 30, 2001
Publication Date
May 14, 2003
Inventor
Aastad Tone
NO
Grimsland Lars Tore
NO
Olsen Ben Arve
NO
Vardal Odd Jarle
NO
Allemeersch Paul
BE
Melaaen Ingrid S
NO
Assignee
Borealis Tech Oy
FI
IPC
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