| 铁矿石中全铁准确定量影响因素的探讨 |
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| 引用本文： | 彭速标,卢振国,林宏雄,郑建国,翟翠萍,钟志光,梁淑华.铁矿石中全铁准确定量影响因素的探讨[J].广东化工,2011,38(1):185-187. |
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| 作者姓名： | 彭速标 卢振国 林宏雄 郑建国 翟翠萍 钟志光 梁淑华 |
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| 作者单位： | 广东检验检疫局,检验检疫技术中心,广东,广州,510623 |
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| 摘 要： | 探讨了铁矿石中全铁准确定量的影响因素，根据理论计算和实践的结果，认为预还原阶段如何准确消除过量还原剂是影响结果准确度最大的因素，这直接与指示剂的选择和滴定终点的判断方式相关。文章认为光度滴定铈量法将是一个准确、快速测定铁矿石中全铁的方法，也是一个节能减排、低碳环保的方法。
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| 关 键 词： | 铁矿石 全铁 铈量法 重铬酸钾法 光度谪定法 |
Discussion on the Influential Factors of Accurate Determination of Total Iron Content in Iron Ores |
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| Peng Subiao,Lu Zhengguo,Lin Hongxiong,Zheng Jianguo,Zhai Cuiping,Zhong Zhiguang,Liang Shuhua.Discussion on the Influential Factors of Accurate Determination of Total Iron Content in Iron Ores[J].Guangdong Chemical Industry,2011,38(1):185-187. |
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| Authors: | Peng Subiao Lu Zhengguo Lin Hongxiong Zheng Jianguo Zhai Cuiping Zhong Zhiguang Liang Shuhua |
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| Affiliation: | (Guangdong Entry-Exit Inspection ＆ Quarantine Bureau, Guangzhou 510623, China) |
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| Abstract: | The influential factors of accurate determination of total iron content in iron ores were discussed. According to the theoretical calculations and experimental results, it was found that the complete elimination of the excessive reducing agents was the most important factor. It was related to the selection of indicators and endpoint detecting methods. It was considered that the combination of cerimetry and photometric titration would be a simple, accurate and environmental method for the determination of total iron in iron ores. |
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| Keywords: | iron ores total iron content cerimetry potassium dichromate titration photometric titration |
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