公开(公告)号：US09243082B2

公开(公告)日：2016-01-26

申请号：US14355512

申请日：2012-11-01

Applicant: Basell Polyolefine GmbH

Inventor： Klaus Berhalter ,  Andrei Gonioukh ,  Thomas Herrmann ,  David Finotto ,  Gilles Rieu ,  Laurent Hautier ,  Christoph Treis

IPC: C08F2/00 ,  C08F2/34 ,  C08F4/04 ,  C08F4/34 ,  C08F10/02 ,  C08F10/00 ,  C08F2/38

CPC classification number: C08F4/34 ,  C08F4/04 ,  C08F10/00 ,  Y02P20/582 ,  Y02P30/48 ,  C08F2/00 ,  C08F2/005 ,  C08F110/02 ,  C08F2500/12

Abstract: Process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus, wherein the reaction gas composition is compressed to the polymerization pressure by at least two sequentially operating compressors in which a low-pressure compressor first compresses the reaction gas composition to a pressure of from 10 MPa to 50 MPa and a high-pressure compressor then further compresses the reaction gas composition to the polymerization pressure wherein the high-pressure compressor is operated with a polyalkylene glycol based synthetic lubricant and oxygen is introduced into the fresh gas feed or into the polymerization apparatus in an amount that the gas composition to be compressed in the high-pressure compressor has an oxygen content in the range of from 0.01 ppm to 0.9 ppm.

Abstract translation: 在自由基聚合引发剂存在下，在110MPa至500MPa的压力下，在连续操作的聚合反应中在100℃至350℃的温度范围内使烯属不饱和单体聚合或共聚的方法 装置，其中反应气体组合物通过至少两个顺序操作的压缩机压缩至聚合压力，其中低压压缩机首先将反应气体组合物压缩至10MPa至50MPa的压力和高压压缩机 将反应气体组合物进一步压缩至聚合压力，其中高压压缩机用聚亚烷基二醇基合成润滑剂进行操作，氧气以将待压缩的气体组合物的量引入新鲜气体进料或聚合装置中 高压压缩机的氧含量在0.01ppm至0的范围内 .9 ppm。