Patent ID: 6111035
Filing Date: 2000-08-29
Classification: B01J,C08F

Abstract:
A polymerization process of olefins and/or conjugated dienes and/or vinyl aromatic compounds which comprises the steps of:feeding a monomer as a raw material, a polymerization catalyst, and optionally, an inert medium to a tubular reactor from an inlet thereof in a pressurized state, said tubular reactor being linear and optionally having a curved portion;permitting a part of the raw material monomer and the inert medium fed to the reactor and flowing to an outlet of the reactor to form a gas phase and the remainder to form a liquid phase, so that both of the gas phase comprising the raw material monomer and/or the inert medium and the liquid phase comprising the raw material monomer and/or the inert medium are present in the reactor, wherein said liquid phase may contain a resulting polymer as a solid, thereby to obtain a gas-liquid separated flow or a gas-liquid-solid separated flow which has the gas phase continuous in the direction of flow in the reactor; andpolymerizing the raw material monomer while carrying the liquid phase by the gas phase flow, wherein the ratio of a volume flow rate of the liquid phase to a volume flow rate of the gas phase at the outlet of the reactor is 0.00001 to 100,000.