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Title:
METHOD FOR GRANULATING REFINING-MATERIAL USING STEELMAKING DUST
Document Type and Number:
Japanese Patent JP2005220431
Kind Code:
A
Abstract:

To improve the recycling rate of waste electrophotographic developer by efficiently recovering valuable metals contained in steelmaking dust and the electrophotographic developer.

In a method for granulating the refining-material for reduction-refining a steel material, the steelmaking dust and aluminum ash are mixed with binder component and the plasticity is given to this mixture and the granulation is performed to produce the refining-material. As this binder, a resin component for toner binder blended with an additive for improving the lubricity and the fluidity, is mixed with the steelmaking dust and the aluminum ash. The obtained mixture is softened to give the plasticity, without passing through a heating and melting means for heating and fusing this binder, and granulated into the refining-material by a granulating means.


Inventors:
Morii, Yoshihiro
Ito, Tetsuo
Asahi, Masami
Torii, Kazuma
Matsuura, Hiroyuki
Sugimoto, Takeshi
Application Number:
JP2004000032532
Publication Date:
August 18, 2005
Filing Date:
February 09, 2004
Export Citation:
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Assignee:
RICOH CO LTD
SHINKOO FLEX:KK
International Classes:
C22B1/244; C21C5/38; C21C7/00; C21C7/04; C22B1/14; C22B1/24; C22B1/242; C22B1/248; C22B7/02; C22B21/00; G03G9/08; G03G9/083; G03G9/087; G03G9/107; (IPC1-7): C22B1/244