Prevention of fouling in polymerization reactors
AssigneePhillips Petroleum Company
InventorKenneth W. Willcox
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Abstract
An olefin or mixture of olefins is polymerized in a hydrocarbon diluent in a turbulent reaction zone to produce particles of polymer which are substantially insoluble in the diluent (particle form process). Fouling of the reactor by adherence of polymer particles to the walls of the reactor is reduced by adding to the reaction medium a composition which comprises a mixture of (a) a polysulfone copolymer, (b) a polymeric polyamine, and (c) an oil-soluble sulfonic acid.
Claims10
In a process in which at least one olefin is polymerized in a hydrocarbon diluent in a turbulent reaction zone to produce particles of polymer which are substantially insoluble in the diluent, the method of reducing adherence of polymer particles to the walls of the reaction zone which comprises adding to the reaction medium in an amount effective to reduce adherence of polymer particles to the walls a composition comprising
- (a) a polysulfone copolymer of sulfur dioxide and an olefinic compound;
- (b) a polymeric polyamine which is a reaction product of epichlorohydrin with an aliphatic primary monoamine or N-aliphatic hydrocarbyl alkylene diamine;
- and
- (c) an oil-soluble sulfonic acid.
Dependencies are inferred from the claim text.