B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
202/99
B01D 3/14 (2006.01) B01D 3/40 (2006.01) C08F 6/06 (2006.01) C08J 11/02 (2006.01)
Patent
CA 1277945
Abstract A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
503278
Asanuma Tadashi
Hino Minoru
Ohoka Tatuo
Uchikawa Nobutaka
Asanuma Tadashi
Hino Minoru
Mitsui Toatsu Chemicals Inc.
Ohoka Tatuo
Sim & Mcburney
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