The object of the present invention is to provide a polyolefin polymerization
method which prevents fine particles of polymer from scattering from a fluidized
bed in a gas phase polymerization reactor. This object is achieved by a process
for polymerization of -olefin in multi-stage polymerization process and
in at least two serially arranged polymerization reactors including a gas phase
polymerization reactor, the process comprising;
drawing out polyolefin particles from a polymerization reactor, and
transferring the polyolefin particles into the interior of fluidized bed
of a gas phase polymerization reactor of the next stage.
