发明名称 |
METHOD FOR PRODUCING SINTERED ORE, METHOD FOR PRODUCING MATERIAL FOR SINTERING, GRANULATED PARTICLE, AND SINTERED ORE |
摘要 |
<p>A method for producing a sintered ore (50a) which comprises forming, on the surface of a nucleus particle (51) containing an iron ore, a first coating layer (52) using an iron-containing substance and optionally an SiO2-containing material, and subsequently a second coating layer (53) using limestone and a solid fuel based material, to prepare a granulated particle (50), and then sintering the granulated particle (50), wherein the iron-containing substance used for forming the first coating layer (52) has a porosity of 20 % or less or has a porosity of 20 % or less and a content of Al2O3 of 2.1 mass % or less, and wherein the iron ore for the nucleus particle has a porosity higher than that of the iron-containing substance used for the first coating layer (52) or has a porosity and/or a content of Al2O3 higher than that or those of the iron-containing substance.</p> |
申请公布号 |
WO2005035803(A1) |
申请公布日期 |
2005.04.21 |
申请号 |
WO2004JP15302 |
申请日期 |
2004.10.08 |
申请人 |
JFE STEEL CORPORATION;OYAMA, NOBUYUKI;SATO, HIDEAKI;MACHIDA, SATOSHI;UEKI, YASUAKI |
发明人 |
OYAMA, NOBUYUKI;SATO, HIDEAKI;MACHIDA, SATOSHI;UEKI, YASUAKI |
分类号 |
C22B1/16;C22B1/245;(IPC1-7):C22B1/16 |
主分类号 |
C22B1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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