摘要
分析对比了国内各类全铁含量测试方法。指出适合钢渣中全铁含量测试方法的是EDTA滴定法和氯化亚锡+三氯化钛还原-重铬酸钾滴定法。EDTA滴定法测试钢渣中全铁含量时不必加入高氯酸和氢氟酸脱硅,试样溶解后,可以直接以EDTA标准滴定溶液测全铁含量。并采用EDTA滴定法分析了不同种类钢渣中全铁含量的差异。
Various test methods for total iron content are analyzed and compared in China.It is pointed out that EDTA titration and potassium dichromate titration after titanium(Ⅲ)chloride+tin(П)chloride reduction potassium dichromate titration are suitable for the determination of total iron content in steel slag.It is not necessary to add perchloric acid and hydrofluoric acid for desilication when testing the total iron content in steel slag by EDTA titration.After the sample is dissolved,the total iron content can be measured directly by EDTA standard titration solution.The difference of total iron content in different kinds of steel slag was analyzed by EDTA titration.
作者
张旭
张亮亮
Zhang Xu;Zhang Liangliang(Central Research Institute of Building and Construction,MCC Group,Co.,Ltd.,Beijing 100088,China)
出处
《冶金标准化与质量》
2023年第6期40-42,53,共4页
Metallurgical Standardization & Quality
