发明名称 |
IRON OXIDE PARTICLES AND METHOD FOR PRODUCTION THEREOF |
摘要 |
<p>Iron oxide particles having the surface thereof coated with a layer of a complex iron oxide containing Al and Mg are disclosed. The total content of Al and Mg in the complex iron oxide layer is 0.1 to 2.5% by weight based on the whole iron oxide particles. The Mg content in the complex iron oxide layer is 0.05 to 1% by weight based on the whole iron oxide particles. The Al content in the complex iron oxide layer is 0.05 to 1.7% by weight based on the whole iron oxide particles. The Mg content in the complex iron oxide layer is 20% or more based on the total Mg content of the whole iron oxide particles.</p> |
申请公布号 |
EP1443024(B1) |
申请公布日期 |
2013.02.27 |
申请号 |
EP20020777833 |
申请日期 |
2002.10.15 |
申请人 |
MITSUI MINING & SMELTING CO., LTD. |
发明人 |
SHIMAMURA, H.;MIWA, M. |
分类号 |
C01G49/00;C09C1/24 |
主分类号 |
C01G49/00 |
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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