| 发明名称 |
METHOD FOR PREVENTING ELUTION OF FLUORINE FROM SLAG |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a method which can prevent the elution of fluorine by relatively rapidly, efficiently and cost effectively fixing the fluorine in slag mainly composed of a CaO-SiO<SB>2</SB>phase. SOLUTION: The slag mainly composed of the CaO-SiO<SB>2</SB>phase is aged in a heated steam atmosphere by adding SiO<SB>2</SB>thereto in such a manner that the ratio thereof attains 1 to 30 pts.wt. per 100 pts.wt. slag. COPYRIGHT: (C)2004,JPO
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| 申请公布号 |
JP2003293025(A) |
申请公布日期 |
2003.10.15 |
| 申请号 |
JP20020102901 |
申请日期 |
2002.04.04 |
| 申请人 |
DAIDO STEEL CO LTD |
发明人 |
HAYASHI HIDESATO;HOBO MAKOTO;SHIBATA TOMOKI |
| 分类号 |
B09B3/00;C21C7/00;F27D15/00;(IPC1-7):C21C7/00 |
主分类号 |
B09B3/00 |
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