The growing use of metallic iron in metallurgy and industrial chemical
applications requires a fast, easy and cheap method for the determination of
metallic iron, not merely in recyclable materials, such as iron pellets,
reduced iron mill scale dust, electric arc furnace dust and pig iron, but
from hot briquette iron (HBI) as well. This study investigates a new method
for determination of metallic iron within HBI used for steel-making
materials. The effects of reaction time, temperature, and stirring rate were
studied. The concentration of iron was determined via Atomic Absorption
Spectroscopy (AAS). After the optimization study, high-purity metallic iron
powder (Sigma-Aldrich, PubChem Substance ID 24855469) was used to compare
efficiencies and identify the optimum conditions; The present study was
matched with international standard methods (BS ISO 5416:2006, IS
15774:2007). Results were consistent with certified values and metallic iron
content could be determined within the 95% confidence level. The purposed
method is easy, straightforward, and cheap.
Quantitative Determination of Metallic Iron Content in Steel-Making Slag