Patent ID: 6018085
Filing Date: 2000-01-25
Classification: C07C

Abstract:
A method of reclaiming styrene from polystyrene-containing materials mixed with contaminants comprising at least one selected from the group consisting of animal fats, vegetable oils and blends thereof, the method comprising the steps of:mixing the polystyrene-containing materials with a solvent to form a solution of polystyrene and contaminants from said materials in said solvent,placing said polystyrene solution in distillation equipment,purging the distillation equipment with an inert gas to substantially purge oxygen therefrom,heating said polystyrene solution in the distillation equipment, under controlled conditions, to depolymerize the polystyrene and produce a styrene fraction and a heavier fraction, andseparating the styrene fraction from the heavier fraction.