Title:
ENVIRONMENT CLEANING IRON POWDER AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2004351256
Kind Code:
A
Abstract:
To provide iron powder for cleaning the environment, which has the function of dehalogenating/decomposing an halogenated organic compound harmful to the human body in a short period of time and to provide a method for manufacturing the iron powder.
This iron powder for cleaning the environment is the reduced one having the composition of ≥70 mass% and <90 mass% metal iron. This method for manufacturing the iron powder comprises a step to prepare spongy iron cake containing a non-reduced portion to be reduced halfway by heating iron oxide together with a solid reducing agent, a step to crush the prepared spongy iron cake and a step to classify the crushed iron cake and gather the non-reduced portion as the iron powder.
Inventors:
SUGIHARA YUTAKA
SONOBE AKIO
ONO TOMOSHIGE
SONOBE AKIO
ONO TOMOSHIGE
Application Number:
JP2003149064A
Publication Date:
December 16, 2004
Filing Date:
May 27, 2003
Export Citation:
Assignee:
JFE STEEL KK
International Classes:
A62D3/37; B09C1/02; B09C1/08; B22F1/00; B22F9/20; C02F1/70; C21B13/00; A62D101/22; A62D101/28; (IPC1-7): C02F1/70; A62D3/00; B09C1/02; B09C1/08; B22F1/00; B22F9/20; C21B13/00
Attorney, Agent or Firm:
Eiichi Kobayashi