Process for reducing sheeting during polymerization of alpha-olefins
AssigneeUnion Carbide Corporation
InventorsBernard D. Fulks, Steven P. Sawin, Collin D. Aikman, John M. Jenkins, III
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Abstract
A process for reducing sheeting during production of polyolefins by polymerization of alpha-olefins utilizing titanium based polymerization catalysts wherein the static electric charges in the reactor at the site of possible sheet formation are maintained below static voltage levels which would otherwise cause sheet formation.
Claims9
In a method for polymerization of one or more alpha-olefins in a fluidized bed reactor in the presence of a catalyst prone to cause sheeting, the improvement which comprises maintaining the static electric charge in said reactor at the site of possible sheet formation below a static voltage level which would otherwise permit sheeting to occur, by means for creating areas of localized field strength within said reactor for the promotion of electrical discharge to ground.
A process for reducing sheeting during polymerization of alpha-olefins in a fluidized bed reactor utilizing titanium-based polymerization catalyst, which comprises maintaining the static electric charge in said reactor at the site of possible sheet formation below a static voltage level which would otherwise permit sheet formation, by means for creating areas of localized field strength within said reactor for the promotion of electrical discharge to ground.
Dependencies are inferred from the claim text.