公开(公告)号：DE2850335A1

公开(公告)日：1979-05-31

申请号：DE2850335

申请日：1978-11-20

Applicant: STANDARD OIL CO

Inventor： HOFF GLEN RICHARD ,  MELQUIST JOHN LESLIE ,  NAPERVILLE ILL ,  FOTIS PETER

IPC: B01J8/10 ,  B01J8/36 ,  B01J8/38 ,  B01J19/18 ,  C08F2/00 ,  C08F2/34 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00

Abstract: Vapor phase polymerization of an olefin which comprises conveying inactive high yield titanium catalyst component to a vapor phase polymerization reactor with a liquid comprising recycled quench liquid, reactivating said inactive high yield titanium catalyst component inside the reactor with a metal alkyl reducing agent and polymerizing olefin under gas phase polymerization conditions with reactivated high yield catalyst to form a resinous polymer of an olefin having a low level of catalyst residues.