Process for preparing ethylene polymer

Details Process for preparing ethylene polymer Process for preparing ethylene polymer

C - Chemistry, Metallurgy

08

F

402/612

C08F 2/42 (2006.01) B01J 19/18 (2006.01) C08F 4/62 (2006.01) C08F 10/02 (2006.01)

Patent

CA 1191998

- 33 - ABSTRACT IMPROVED PROCESS FOR PREPARING ETHYLENE POLYMER A process for preparing an ethylene polymer by polymerization of ethylene or its mixture with at least one other copolymerizable monomer at an elevated temperature under an elevated pressure, characterized in that the polymerization is carried out in the presence of an ionic polymerization catalyst in at least two autoclave reactors, including a first autoclave reactor and a second autoclave reactor, connected in series by means of a connecting pipe(s) and provided with a cooler on the connecting pipe between the first autoclave reactor and the second autoclave reactor, and the polymerization is initiated in the first autoclave reactor to a certain extent, the reaction mixture is discharged therefrom through the connecting pipe, cooled in the cooler and sent to the second autoclave reactor, and the polymerization is further continued therein.

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