Title:
FINE POWDER OF MIXED PLASTICS AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/026918
Kind Code:
A1
Abstract:
A process for producing a fine powder of mixed plastics, comprising the steps
of preparing mixed plastics whose chlorine concentration is in the range of 2
to 20 mass% by an increase or decrease of at least one plastic selected from the
group consisting of a chlorinated plastic and a nonchlorinated plastic; agitating
the mixed plastics in molten form to thereby attain dechlorination to a chlorine
concentration of 0.9 mass% or below; cooling the agitated matter having been
dechlorinated to thereby solidify the same; and pulverizing the solidified
matter. By the application of this process, rather increasing of the chlorine
concentration of waste plastic as long as the chlorine concentration falls within
a given range accelerates the agitation and dechlorination of molten waste plastic
to thereby enable production of waste plastic powder that is rather very low in
chlorine concentration and highly fine. Therefore, plastics having been discarded
in living, industrial activity, etc. can be reutilized as a reducing agent, fuel,
etc.
Inventors:
ASANUMA MINORU (JP)
HARA YOSHIAKI (JP)
KAJIOKA MASAHIKO (JP)
ARIYAMA TATSURO (JP)
HAYASHI AKIO (JP)
TAKASHIMA NOBUHIRO (JP)
TERADA KANEO (JP)
OOGAKI YOUJI (JP)
HARA YOSHIAKI (JP)
KAJIOKA MASAHIKO (JP)
ARIYAMA TATSURO (JP)
HAYASHI AKIO (JP)
TAKASHIMA NOBUHIRO (JP)
TERADA KANEO (JP)
OOGAKI YOUJI (JP)
Application Number:
PCT/JP2006/317410
Publication Date:
March 08, 2007
Filing Date:
August 29, 2006
Export Citation:
Assignee:
JFE STEEL CORP (JP)
ASANUMA MINORU (JP)
HARA YOSHIAKI (JP)
KAJIOKA MASAHIKO (JP)
ARIYAMA TATSURO (JP)
HAYASHI AKIO (JP)
TAKASHIMA NOBUHIRO (JP)
TERADA KANEO (JP)
OOGAKI YOUJI (JP)
ASANUMA MINORU (JP)
HARA YOSHIAKI (JP)
KAJIOKA MASAHIKO (JP)
ARIYAMA TATSURO (JP)
HAYASHI AKIO (JP)
TAKASHIMA NOBUHIRO (JP)
TERADA KANEO (JP)
OOGAKI YOUJI (JP)
International Classes:
B29B17/04; B29B17/00; C10L5/48; B29K27/00
Foreign References:
JP2004204177A | 2004-07-22 | |||
JP2005060630A | 2005-03-10 | |||
JP2003055497A | 2003-02-26 |
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JFE Techno-Research Corporation 7th Floor Yanagiya Building, 1-10, Nihonbashi 2-chom, Chuo-ku Tokyo 27, JP)
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