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Title:
PROCESS FOR TREATMENT OF WASTE PLASTIC CONTAINING FLAME RETARDANT COMPONENT
Document Type and Number:
Japanese Patent JP2001072793
Kind Code:
A
Abstract:

To provide a process for separating and recovering a plastic component and a flame retardant component from a waste plastic efficiently without fail and, desirably, for using a part of the treated waste plastic effectively.

This process comprises the steps of: heating an organic solvent having a boiling point of at least 250°C and an aromaticity index of at least 0.20 to a temperature being in the range of 200-400°C and lower than its boiling point; immersing a waste plastic containing a flame retardant component in the heated organic solvent to separate it into a plastic component and a flame retardant component; and separately recovering the separated plastic and flame retardant components from the organic solvent. Desirably, the plastic component recovered from the organic solvent is crushed to process it into a fuel for a furnace and/or an iron source reductant.


Inventors:
ASANUMA MINORU
OKADA TOSHIHIKO
HIROHANE HIROYUKI
ARIYAMA TATSURO
Application Number:
JP25129299A
Publication Date:
March 21, 2001
Filing Date:
September 06, 1999
Export Citation:
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Assignee:
NIPPON KOKAN KK
International Classes:
C08J11/02; C22B1/00; C22B7/00; (IPC1-7): C08J11/02; C22B1/00
Attorney, Agent or Firm:
Tomomachi Masatoshi