METHOD FOR RECOVERY OF STYRENE MONOMER FROM POLYSTYRENE RESIN BY CATALYTIC METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for recovery of styrene monomer from polystyrene resin by a catalytic method capable of pyrolizing a polystyrene resin at a comparatively low temperature and suppressing cost of equipment or the like low, recovering an oil including a low percentage of low molecular weight components and a high rate of styrene monomer content from the pyrolysis gas. SOLUTION: This method recovering styrene monomer from a polystyrene resin by a catalytic method is characterized by recovering the styrene monomer using a sulfate as a catalyst in the pyrolysis of the polystyrene resin.