钢渣中游离氧化镁含量的测定

Determination of Free Magnesium Oxide in the Slag

研究和提出了以硝酸铵-乙醇作为提取剂提取活性氧化镁（即游离氧化镁）的分析方法。通过正交实验,选取了最佳的提取条件。样品平行测定的相对标准偏差在0.51%-2.13%之间,回收率实验结果为98.2%-99.0%,表明该实验的精密度和准确度均较好。采用硝酸铵-乙醇作为提取剂提取游离氧化镁的分析方法,实现了钢渣中游离氧化镁的快速、准确测定,为钢渣的回收再利用提供了依据。

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.