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Title:
METHOD FOR UTILIZING ZINC-CONTAINING IRON SCRAP IN IRON MANUFACTURING PROCESS
Document Type and Number:
Japanese Patent JP2007177284
Kind Code:
A
Abstract:

To provide a method for utilizing zinc-containing iron scraps by which, when utilizing the zinc-containing iron scraps as an iron source in an iron manufacturing process, zinc can be removed from the zinc-containing iron scraps by a simple and inexpensive method and, as the result, even in the case where the zinc-containing iron scraps are used as an iron source without previously removing the zinc in the scraps by means of heating treatment etc., zinc concentration does not occur in the dust recovered from various iron manufacturing processes and the recovered dust can be used, as it is, as a raw material for iron manufacture.

The zinc-containing iron scraps are charged into a high-temperature vessel constructed of refractory material, and the zinc in the zinc-containing iron scraps is oxidized and vaporized using the heat of the above vessel. After the removal of the zinc by vaporization, hot metal is poured into the vessel.


Inventors:
TAKEHAMA RYOHEI
SHIINO JUNICHI
TANAKA SHIYUUEI
SUMI IKUHIRO
Application Number:
JP2005377066A
Publication Date:
July 12, 2007
Filing Date:
December 28, 2005
Export Citation:
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Assignee:
JFE STEEL KK
International Classes:
C22B19/30; C22B5/16; C22B7/00; C22B19/34
Domestic Patent References:
JP2001240919A2001-09-04
JP2004307944A2004-11-04
JPS54142116A1979-11-06
JP2005281719A2005-10-13
JPH07188720A1995-07-25
Attorney, Agent or Firm:
Kenichiro Ochiai
Kazuhiro Mori