2012 Fiscal Year Final Research Report
Thermodynamic of equilibrium partition ratio of impurities between solid iron and molten oxide
| Project/Area Number |
22760574
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Metal making engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Keywords | 鉄鋼製錬 / 水素還元 / 直接製鋼 / 不純物分配 / 革新プロセス / フォスフェイトキ ャパシティ / 熱力学 / 高温プロセス |
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| Research Abstract |
In the conventional iron making process, impurities in iron ore such as phosphorous are reduced and existed in iron phase due to excessively low oxygen partial pressure at the hearth of blast furnace. Low impurity iron might be directory obtained by using gas reductant because Oxygen partial pressure can be controlled, i.e. “Direct Steel Making". In this condition, solid iron is obtained due to not carbon saturated condition. In this study, equilibrium distribution of impurities between solid iron and molten oxide was measured experimentally at 1350℃.
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