C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
23/377
C08F 2/14 (2006.01) B01D 3/06 (2006.01) B01J 8/00 (2006.01) B01J 19/18 (2006.01) C08F 10/00 (2006.01) C08F 110/02 (2006.01)
Patent
CA 2018920
A polymerization process wherein monomers are polymerized in liquid diluent to produce a liquid slurry containing particles of normally solid polymers, periodically opening a product takeoff port in the to allow a charge of liquid slurry to flow into an elongated confined zone including a flash line heater and then into a flash chamber wherein the lighter components are separated from the problem. The process is particularly characterized by the fact the elongated confined zone is constructed such that the flow time of the charge of slurry in the flash line heater is equal to at least about 25 percent of the time between the time of the closing of the settling valve and the next opening of the settling valve.
Osler Hoskin & Harcourt Llp
Phillips Petroleum Company
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