Method of reclaiming styrene and other products from polystyrene

Details Method of reclaiming styrene and other products from polystyrene Method of reclaiming styrene and other products from polystyrene

1998-09-10

2000-01-25

Yildirim, Bekir L.

Chemistry of hydrocarbon compounds

Production of hydrocarbon mixture from refuse or vegetation

From synthetic resin or rubber

585240, C07C 100

Patent

active

060180854

ABSTRACT:
A method of reclaiming styrene from polystyrene-containing materials contaminated with animal fats and/or vegetable oils. A solution of polystyrene from such materials in a solvent is heated in distillation equipment to depolymerize the polystyrene and produce a styrene fraction and a heavier fraction, the styrene fraction being separated from the heavier fraction. Prior to heating, an inert gas is used to purge the distillation equipment of oxygen. The method preferably is carried out at the lowest temperature which will achieve the desired rate of depolymerization.

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