2012 Fiscal Year Final Research Report
Studies on clarification of metal forms in molten fly ashes and high-efficiency removal of sulfur compounds
| Project/Area Number |
23710099
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Akita National College of Technology |
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Principal Investigator |
NONAKA Risehiro 秋田工業高等専門学校, 物質工学科, 准教授 (20400525)
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| Project Period (FY) |
2011 – 2012
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| Keywords | リサイクル技術 / カーボクロリネーション反応 / 化学形態分析 |
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| Research Abstract |
To develop an efficient recovery process of valuable metals from molten fly ashes,chlorination behavior and chemical form changes of lead and sulfur with CaCO3, CaOand Fe were investigated. In the case of CaCO3 addition, removal extent of sulfur from mixed sample was achieved to 53.9 - 66.1% at 1073 K, and lead sulfurization wassuppressed. Metal sulfate (M : Na, K, Ca, Fe) were formed in solid phase by theaddition of CaCO3 and CaO.
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