| 摘要 |
PURPOSE: A process for terminating a gas phase polymerization of a conjugated diene, a vinyl-substituted aromatic compound is suited for stopping a gas phase polymerization reaction of one or more dienes and/or one or more vinyl-substituted aromatic compounds. CONSTITUTION: A method for terminating a gas phase polymerization of a compound selected from the group consisting of a conjugated diene, a vinyl-substituted aromatic compound, and mixtures thereof, in a polymerization vessel in the presence of a catalyst, and optionally in the presence of an inert particulate material, comprises introducing a kill agent selected from the group consisting of an alcohol having 1 to 20 carbon atoms, an alkyl or cycloalkyl monoether each having 2 to 20 carbon atoms, ammonia, water, an alkyl or aryl amine, and mixtures thereof into the vessel in an amount sufficient to terminate polymerization; and wherein the catalyst has a metal component in which the metal is selected from the group consisting of a rare earth, nickel, cobalt, titanium, and mixtures thereof.
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