C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/612
C08F 2/00 (2006.01) B01J 3/04 (2006.01) B01J 19/24 (2006.01) C08F 10/02 (2006.01)
Patent
CA 1188047
ABSTRACT A process for producing polymers or copolymers of ethylene, in which ethylene, optionally together with one or more copolymerizable compounds, is polymerized at a pressure above 50,000 kPa and a temperature of between 100° and 400°C in the presence of an initiator, using an autoclave reactor and a tubular reactor connected in series with said autoclave reactor. The monomeric mixture in the presence of the initiator is passed first into a stirred autoclave, in which it is partially polymerized. Thereafter the reaction mixture from said autoclave, is passed through a heat exchanger, cooled to a predetermined value, and then subsequently passed to a non-cooled tubular reactor, in which the further polymerization is carried out under adiabatic conditions.
407080
Adriaans Jan L.j.
Dees Pieter G.
Smart & Biggar
The Dow Chemical Company
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