RECOVERED SOLVENT FROM FOAMED POLYSTYRENE TREATED SOLUTION, RECOVERING PROCESS FOR FOAMED POLYSTYRENE TREATING SOLVENT USING THIS, AND RECYCLING PROCESS FOR POLYSTYRENE RESIN USING THIS

摘要

PROBLEM TO BE SOLVED: To provide a solvent recovered by extraction from a foamed polystyrene treated solution in which a foamed polystyrene is converted into jelly or gel, to provide a process in which the solvent in rapidly and simply recovered in good efficiency and with saving a cost and energy, and to provide a reclaiming process for a foamed polystyrene-treating solvent using this and a reclaiming process for a polystyrene resin using this. SOLUTION: The recovering medium for extracting and recovering a component of the foamed polystyrene-treating solvent from a treated substance in which a foamed polystyrene has been treated into a jelly or gelatinous form by contacting with the foamed polystyrene-treating solvent, is characterized in that this recovering medium by having a principal component of the compound having in one molecule at least one kind of a functional group with 65 or more of the inorganicity value in the organicity conceptive chart.