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Title:
METHOD OF PROCESSING SLAG
Document Type and Number:
WIPO Patent Application WO/2009/116684
Kind Code:
A1
Abstract:
Disclosed is a method for aging steel slag or the like efficiently in a short time at a low cost. A method of processing slag comprises a step (A) for spraying water to high-temperature slag such as steel slag, and a step (B) for aging the slag by bringing steam produced by spraying water in step (A) into contact with slag cooled by water spraying, wherein the step (A) and the step (B) employing steam produced in the step (A) are carried out at different places. Since water is sprayed to high-temperature slag and aging of the slag is performed by steam generated by using latent heat of slag, cooling and aging of slag can be carried out efficiently at a low cost, and, since the step for producing steam by spraying water and the step for aging the slag by using the steam are carried out at different places, temperature control of aging is facilitated and steam aging can be carried out under optimal temperature conditions.

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Inventors:
TOBO HIROYUKI (JP)
YABUTA KAZUYA (JP)
TOZAWA HIROKAZU (JP)
IWASAKI KATSUHIRO (JP)
Application Number:
JP2009/056023
Publication Date:
September 24, 2009
Filing Date:
March 18, 2009
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
TOBO HIROYUKI (JP)
YABUTA KAZUYA (JP)
TOZAWA HIROKAZU (JP)
IWASAKI KATSUHIRO (JP)
International Classes:
C04B5/00; C21B3/06; C21B3/08; C21C5/28; C21C7/00; F27D15/00; F27D15/02
Foreign References:
JPH06256046A1994-09-13
JPH072444U1995-01-13
JPH09178366A1997-07-11
JP2001180990A2001-07-03
JP2004026548A2004-01-29
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JFETECHNO-RESEARCH CORPORATION, 7th,floor, Yanagiya building, 1-10,Nihonbashi 2-chome, Chuo-ku, Tokyo 27, JP)
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