Title:
METHOD FOR PRODUCING PULVERIZED WASTE PLASTIC AND SOLID FUEL OR MINERAL REDUCTION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2010/030038
Kind Code:
A1
Abstract:
Provided is a method for producing a pulverized waste plastic wherein it is possible to produce at a low cost and with improved productivity a pulverized product by micropulverization of waste plastic. The method for producing a pulverized waste plastic is characterized in that waste plastic is kneaded at a shear speed of 100 (1/second) or greater as it is being melted at a temperature that is the softening and melting temperature or greater, preferably 160°C, but is a temperature at which flammable decomposition gases are not generated, preferably 270°C or lower, and then is cooled and solidified and the solid product is pulverized. Melting and kneading are preferably performed using an extruder, particularly a biaxial extruder.
Inventors:
KAJIOKA MASAHIKO (JP)
ASANUMA MINORU (JP)
TSURUTA HIDEKAZU (JP)
ASANUMA MINORU (JP)
TSURUTA HIDEKAZU (JP)
Application Number:
PCT/JP2009/066205
Publication Date:
March 18, 2010
Filing Date:
September 10, 2009
Export Citation:
Assignee:
JFE STEEL CORP (JP)
KAJIOKA MASAHIKO (JP)
ASANUMA MINORU (JP)
TSURUTA HIDEKAZU (JP)
KAJIOKA MASAHIKO (JP)
ASANUMA MINORU (JP)
TSURUTA HIDEKAZU (JP)
International Classes:
B29B17/04; B02C19/00; B02C19/18; B29B17/00; C10L5/48; C22B1/16; C22B1/244
Foreign References:
| JPH11147973A | 1999-06-02 | |||
| JPH11209767A | 1999-08-03 | |||
| JPH11140474A | 1999-05-25 | |||
| JPH09118888A | 1997-05-06 | |||
| JPH11197630A | 1999-07-27 |
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JP)
Ken-ichiro Ochiai (JP)
Ken-ichiro Ochiai (JP)
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