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Title:
METHOD FOR RECYCLING SLAG IN LADLE
Document Type and Number:
Japanese Patent JP2009221560
Kind Code:
A
Abstract:

To effectively utilize slag remaining in a ladle after completing the casting, without raising a recycle-treatment cost and also, without bringing about bad influence to the other operation.

A method for recycling the slag in the ladle is performed as the followings: the slag 1 remaining in the ladle 3 after completing the casting is exhausted into a molten iron ladle 6 for accomodating the molten iron 8 by tilting the above ladle as the hot-state, and the molten iron 8 is discharged as the main raw material for decarburize-refining in a converter from the molten iron ladle under state of leaving the slag in this molten iron ladle and thereafter, the molten iron 10 tapped off from a blast furnace is received with the above molten iron ladle 6 leaving the slag, and after receiving the molten iron, the received molten iron 10 is desulfurized by using the above slag as a part of the desulfurizing agent 14.


Inventors:
AKAI SHINICHI
MATSUBA TORU
SUDA MAMORU
KAI KIYOTAKA
UEDA YUTAKA
Application Number:
JP2008068643A
Publication Date:
October 01, 2009
Filing Date:
March 18, 2008
Export Citation:
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Assignee:
JFE STEEL CORP
International Classes:
C21C7/00; B22D1/00; C21C1/02
Domestic Patent References:
JP2007297693A2007-11-15
JP2007031800A2007-02-08
JP2000144272A2000-05-26
JP2000129328A2000-05-09
JPH1192817A1999-04-06
JPH05156338A1993-06-22
JPH0277516A1990-03-16
Attorney, Agent or Firm:
Kenichiro Ochiai
Kazuhiro Mori