申请人:MITSUI CHEMICALS, INC.
公开号:EP1348719A1
公开(公告)日:2003-10-01
A process for producing a polyolefin according to the present invention comprises (co) polymerizing one or two or more α-olefins in a vapor phase in a fluidized-bed reactor, wherein the concentration of (A) a saturated aliphatic hydrocarbon in the fluidized bed reactor is 1 mol% or more and at least one compound selected from (B) an aliphatic amide and (C) a nonionic surfactant constituted only of carbon, oxygen and hydrogen atoms is made to exist in the reactor. The present invention can provide a process for producing a polyolefin, the process ensuring that the prevention of clogging caused by the generation of sheet or block polymers and a high efficiency of the production of a polyolefin due to good catalytic activity can be accomplished at the same time and also having superb continuous productivity.
根据本发明的一种生产聚烯烃的工艺包括(共)在流化床反应器中以气相聚合一种或两种或两种以上的α-烯烃,其中流化床反应器中(A)饱和脂肪族烃的浓度为1摩尔%或更高,并使至少一种选自(B)脂肪族酰胺和(C)仅由碳原子、氧原子和氢原子构成的非离子表面活性剂的化合物存在于反应器中。本发明可提供一种生产聚烯烃的工艺,该工艺可确保同时实现防止因生成片状或块状聚合物而造成的堵塞,以及因良好的催化活性而实现聚烯烃的高效生产,并具有极高的连续生产率。