SEPARATION SYSTEM AND SEPARATION METHOD

According to the present invention, PET and foreign matter are appropriately separated. A separation system comprises: a storage part that stores a solution containing a PET solution obtained by dissolving polyethylene terephthalate in a carboxylic acid-derived monomer, and impurities which are comp...

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Bibliographische Detailangaben
Hauptverfasser:	SEIKI, Yoshio, MATSUBARA, Wataru, GENTA, Minoru, HORIZOE, Kouji
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	According to the present invention, PET and foreign matter are appropriately separated. A separation system comprises: a storage part that stores a solution containing a PET solution obtained by dissolving polyethylene terephthalate in a carboxylic acid-derived monomer, and impurities which are components other than polyethylene terephthalate, and that separates the solution into the PET solution and the impurities through gravity; a discharge part for discharging the separated impurities from the storage part; and a reaction part in which the separated PET solution and a reaction solvent, which reacts with the polyethylene terephthalate, are introduced to depolymerize the polyethylene terephthalate in the PET solution.