Hypol Process
July 8th, 2008
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Mitsui Petrochemicals, co-inventor with Himont of the supported catalyst system, has developed similar cheap process using bulk polymerization with its own supported catalysts. It differs from Spheripol system in that batch polymerization is used with washing. Two conventional stirred polymerizers are used in series, with heat removal by evaporation of liquid propene in the reactors. Slurry is then discharged into a stirred, heated flash vessel, where propene is recovered from polymer, as in the Himont system.
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