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Determination of Free Magnesium Oxide in the Slag |
Received:December 16, 2010 Revised:March 23, 2011 |
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DOI:10.3969/j.issn.2095-1035.2011.02.0010 |
KeyWord:slag;free magnesium oxide (f-MgO);ammonium nitrate |
Author | Institution |
ZHANG Jie |
鞍钢股份技术中心,辽宁 鞍山 |
TIAN Xiumei |
鞍钢股份质检中心,辽宁 鞍山 |
QI Shufang |
鞍钢股份技术中心,辽宁 鞍山 |
WANG Ying |
鞍钢股份技术中心,辽宁 鞍山 |
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Abstract: |
A new analytical method was investigated and proposed for determination of active magnesium oxide (free magnesium oxide) in the slag using ammonium nitrate – ethanol as the extraction reagent. Through the orthogonal design experiments, the optimized working conditions were found. The parallel testing gave the RSDs of 0.51%~2.13%, the recoveries of 98.2%~99.0%, indicating good precision and accuracy of the method. The method provides a technical solution for the slag recovery by allowing rapid and accurate determination of free magnesium oxide in the slag. |
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