| 摘要 |
A processs for preparing an ethylene polymer by polymerization of ethylene or its mixture with at least one other copolymerizable monomer at an elevated temperature under all elevated pressure, wherein 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 which are connected in series by means of at least one connecting pipe and provided with a cooler thereon and the polymerization is initiated in the first autoclave reactor, the reaction mixture is discharged therefrom through the connecting pipe, cooled in the cooler and passed to the second autoclave reactor, and the polymerization is further continued therein. |
