PROCEDURE AND MEANS FOR ADDING COORDINATION CATALYST IN POWDER FROM INTO A CONTINUOUSLY OPERATING PRESSURIZED REACTOR

Jukka Seppälä (Inventor)

Research output: Patent

Abstract

A method and apparatus are disclosed for adding coordination catalyst in powder form to a pressurized polymerizing reactor. The coordination catalyst in powder form is suspended in fluid wax. The mixture of catalyst and wax is pumped with the aid of an inert fluid into the polymerizing reactor, where the wax dissolves and the catalyst is set free. The rate at which coordination catalyst suspended in wax is added into the reactor is regulated by changing the pumping rate of the inert fluid. For inert fluid is used dried and nitrogenated heptane and for wax, polyethylene wax. The means comprises a catalyst adding tube connected to the polymerizing reactor, containing coordination catalyst in powder form suspended in wax, and means for pumping inert fluid into the adding tube and for feeding the mixture into the polymerizing reactor.

Original languageEnglish
Patent numberCA1238749
IPCC08L 21/ 02 A I
Priority date19/12/1983
Publication statusPublished - 28 Jun 1988
MoE publication typeH1 Granted patent

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