Slurry phase polymerisation process
AssigneeIneos Manufacturing Belgium NV
InventorsStephen Kevin Lee, Daniel Marissal, Brent R. Walworth
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Abstract
A process comprising polymerising in a loop reactor of a continuous tubular construction an olefin monomer optionally together with an olefin comonomer in the presence of a polymerisation catalyst in a diluent to produce a slurry comprising solid particulate olefin polymer and the diluent wherein the average internal diameter of at least 50% of the total length of the reactor is at least 650 millimeters, the solids concentration in the reactor is at least 15 volume % and having a particle size distribution such that (D90−D10)/D50 is less than 2.
Claims17
A process comprising polymerising in a loop reactor of a continuous tubular construction an olefin monomer optionally together with an olefin comonomer in the presence of a polymerisation catalyst in a diluent to produce a slurry comprising solid particulate olefin polymer and the diluent wherein the average internal diameter of at least 50% of the total length of the reactor is at least 650 millimeters, the solids concentration in the reactor is at least 15 volume % and having a particle size distribution such that (D90−D10)/D50 is less than 1.5, wherein D95 for the polymer powder particles is less than 1000 μm in which D95 is the diameter under which 95% by weight of the particles are collected.
Dependencies are inferred from the claim text.