PROCESS FOR PRODUCTION OF -OLEFIN LOW POLYMERS,申请号EP20070830306-传众专利搜索

PROCESS FOR PRODUCTION OF -OLEFIN LOW POLYMERS

申请公布号：EP2098542(A1)

申请号：EP20070830306

申请日期：2007.10.22

申请公布日期：2009.09.09

申请人：

MITSUBISHI CHEMICAL CORPORATION

发明人：EMOTO, HIROKI;YOSHIZURU, KEI

分类号：C08F4/69;B01J31/34;B01J37/04;C07B61/00;C07C2/08;C07C11/107;C08F2/06;C08F10/00

主分类号：C08F4/69

摘要：The object of the present invention is to provide a production method of an ±-olefin low polymer, wherein a low polymer of an ±-olefin is obtained in high yield. The present invention relates to that when an inert gas is allowed to exist in a gas phase part of a reactor 10 in the proportion of from 0.010 to 50.00% by volume, and an ±-olefin is subjected to low polymerization reaction in a solvent in the presence of a chromium series catalyst comprising a chromium compound (a), at lest one nitrogen-containing compound (b) selected from the group consisting of an amine, an amide and an imide, and an aluminum-containing compound (c), an unreacted ±-olefin and the solvent separated from a reaction liquid are circulated into the reactor 10, and where the proportion of the inert gas in the gas phase exceeds 50.00% by volume, the inert gas is discharged outside the reaction system from a gas phase part of the reactor 10 and/or a circulation piping 21 of an unreacted ±-olefin.