Improvement of A nalysis M ethod of the T otal Iron in Ironmaking D usting A sh
TAN Zhengze
HAN Jingzeng
YIN Guoxun
ZHAO Shiwang
SUN Jianyuan
Abstract：Taking ironmaking dusting ash as samples, the total iron in it was analyzed by sodium peroxide melting method. In the conditions of sodium peroxide dosage 2 g, melting temperature of 650℃and melting time of 10 min, the carbon removal rate reached 98.65%, eliminating the influences of the carbon on the colour of reduction end-point and titration end-point. The analytical results of the artificial samples showed that this method is applicable to the total iron content determination of the ironmaking dusting ash with less than 48% TFe and less than 54% C. Comparing with the National Standard Method, the Industry Standard Method and pre-oxidation method, the results by this method have no significant differences.
Keywords：ironmaking dusting ashtotal iron analysisalkali fusion carbon removalpotassium dichromate volumetric method
Publication Date：2013-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 44-46 )