Title:
STABILIZATION TREATMENT METHOD OF STEEL SLAG AND STABILIZED STEEL SLAG
Document Type and Number:
Japanese Patent JP3828895
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To stably treat steel slag such as converter slag, preliminary treated slag or secondary refining slag generated at an ironwork or the like.
SOLUTION: In a stabilization treatment method of the steel slag, a gas containing gaseous carbon dioxide and having 75-100% relative humidity is made to flow to the steel slag subjected to an aging treatment in an air atmosphere, a pressurized atmosphere or a steam atmosphere after controlling a quantity of carbonated water to be added so that the quantity is in a range less than a water content at which free water begins to exist and also not less than a value lower by 10 mass% than the water content.
Inventors:
Naoto Tsutsumi
Toshikazu Aoki
Makoto Tanaka
Tatsuya Sado
Tomoaki Tasaki
Masayoshi Yokoo
Toshikazu Aoki
Makoto Tanaka
Tatsuya Sado
Tomoaki Tasaki
Masayoshi Yokoo
Application Number:
JP2004052218A
Publication Date:
October 04, 2006
Filing Date:
February 26, 2004
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C04B5/00; C04B5/06; C21C5/28; C21C7/00; E01C3/00; F27D15/00; (IPC1-7): C04B5/06; C21C5/28; C21C7/00; F27D15/00
Domestic Patent References:
| JP8259282A |
Foreign References:
| US5569314 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Masaya Nishiyama
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Masaya Nishiyama
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