On the fly catalyst transitions

Details On the fly catalyst transitions On the fly catalyst transitions

C - Chemistry, Metallurgy

08

F

C08F 2/00 (2006.01) C08F 4/6592 (2006.01)

Patent

CA 2529920

A process for transitioning between Ziegler Natta (Z/N) polymerization catalysts and Second Polymerization catalysts in a polymerization system which includes at least two polymerization reactors During the transition, the Z/N catalyst is used in the "downstream" reactor, thereby providing a flow of polymer to finishing operations This eliminates the need for lengthy shutdowns of finishing equipment and thereby improves the efficiency of the plant operations.

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