METHOD FOR POLYMERISATION OF OLEFINS USING MULTI-LOOP REACTORS

摘要

FIELD: chemistry. ^ SUBSTANCE: described is a method for suspension polymerisation of one or more -olefins in a series of at least two series-connected loop reactors. The reactors are connected to each other by a pipe. Movement of polymer from the first loop reactor to the second loop reactor comprises two steps. The first step enables to return the polymer suspension to the second loop reactor through said pipe, thereby continuously returning a portion of the polymer suspension S1 collected from said second loop reactor. At the second step, a portion of the polymer suspension obtained in the first loop reactor is discharged. The discharge pipe is connected to the above-mentioned pipe. ^ EFFECT: ensuring reliable operation of a polymerisation apparatus. ^ 5 cl, 1 dwg, 3 ex