Title:
TREATMENT FOR STABILIZING STEELMAKING SLAG CONTAINING FLUORINE AND PRODUCTION OF STABILIZING AGENT
Document Type and Number:
Japanese Patent JP3674365
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently suppress elution of fluorine contained in the steelmaking slag.
SOLUTION: An aluminum compound is added to the steelmaking slag 1 molten body, and a stable CaO-Al2O3-F-compound is deposited in the slag during solidification process. Moreover, the fluorine eluted from the steelmaking slag is captured by calcium and aluminum ions eluted from the steelmaking slag 1 when the steelmaking slag is dissolved into rain-water or ground-water.
Inventors:
Hideto Ishino
Kazumi Yusa
Kenji Koda
Hideaki Mizuwatari
Ryo Inoue
Kazumi Yusa
Kenji Koda
Hideaki Mizuwatari
Ryo Inoue
Application Number:
JP5109599A
Publication Date:
July 20, 2005
Filing Date:
February 26, 1999
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
Hideaki Mizuwatari
Hideaki Mizuwatari
International Classes:
C04B5/06; C21B3/06; C21C1/00; C21C5/28; C21C5/36; C21C7/00; F27D15/00; (IPC1-7): C04B5/06; C21B3/06; C21C1/00; C21C5/28; C21C5/36; C21C7/00; F27D15/00
Domestic Patent References:
| JP4224147A | ||||
| JP4317445A | ||||
| JP4224147A | ||||
| JP4317445A |
Attorney, Agent or Firm:
Shoichi Hirose
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