PROCESS FOR THE DRY POLYMERISATION OF OLEFINS

摘要

A dry process for polymerizing olefins to produce polymers having a molecular weight above 50,000 wherein the olefin or olefins to be polymerized are circulated with hydrogen upwardly through a reaction vessel for reaction in the presence of a solid catalyst which has been separately introduced into the reaction vessel with a stream of hydrogen and in which the catalyst is formed of a catalytically active solid compound of a transition metal of sub-groups IVa, Va and VIa of the periodic table of elements, and at least one co-catalyst formed of an organo-metallic compound of a metal of groups II or III of the periodic table.