METHOD FOR STABILIZATION TREATMENT OF STEEL MAKING SLAG, STABILIZED STEEL MAKING SLAG, AND MATERIAL AND METHOD FOR ENVIRONMENTAL PRESERVATION OF WATER AREA USING SAID SLAG

Title:

METHOD FOR STABILIZATION TREATMENT OF STEEL MAKING SLAG, STABILIZED STEEL MAKING SLAG, AND MATERIAL AND METHOD FOR ENVIRONMENTAL PRESERVATION OF WATER AREA USING SAID SLAG

Document Type and Number:

WIPO Patent Application WO/2004/108624

Kind Code:

A1

Abstract:

A method for the stabilization treatment of a slag from a steel making process, characterized in that it comprises adding water or carbonic acid water to the slag in an amount adjusted to a range which is less than a value at which free water starts to be present and is not less than a value being smaller than said value by 10 mass %, and then allowing carbon dioxide to flow to the resultant mixture, to thereby carry out a carbonation treatment without binding particles of the slag with one another. The slag having been subjected to the above method can be utilized as a material for civil engineering works and a material for the environmental preservation of a water area

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Inventors:

TSUTSUMI NAOTO (JP)
MUKAWA SUSUMU (JP)
TANAKA MAKOTO (JP)
AOKI TOSHIKAZU (JP)
SADO TATSUYA (JP)
TASAKI TOMOAKI (JP)
YOKOO MASAYOSHI (JP)
KISO EIJI (JP)
NAKAGAWA MASAO (JP)

Application Number:

PCT/JP2004/008385

Publication Date:

December 16, 2004

Filing Date:

June 09, 2004

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)
TSUTSUMI NAOTO (JP)
MUKAWA SUSUMU (JP)
TANAKA MAKOTO (JP)
AOKI TOSHIKAZU (JP)
SADO TATSUYA (JP)
TASAKI TOMOAKI (JP)
YOKOO MASAYOSHI (JP)
KISO EIJI (JP)
NAKAGAWA MASAO (JP)

International Classes:

C04B5/06; C21B3/04; (IPC1-7): C04B5/00; F27D15/00

Foreign References:

JPH08259282A	1996-10-08
US5569314A	1996-10-29
JP2000203903A	2000-07-25

Other References: