United Determination of the TCa, CaO, CaF2, SiO2 and P in CaO Based Desulfurizer
WANG Junxiu
XUE Minghao
HOU Junkun
MA Qingwen
WEI Wensheng
Abstract：The sample was melted in the mixed solvent containing boric acid, and then constant volume was fixed after acidification by dilute hydrochloric acid. Now, a part of test solution was taken to determine silicon dioxide, phosphorus and TCa respectively by silicon molybdenum blue method, bismuth phosphorus molybdenum blue method and EGTA titrimetric method through controlling their acidity during the determination of each elements. Using the characteristics of the calcium oxide is easy to be dissolved in dilute acetic acid, while the calcium fluoride is insoluble in dilute acetic acid, another sample was taken and dissolved by dilute acetic acid solution. And the constant volume of solution was fixed after filtration and separation. A part of solution was taken to determine CaO by EGTA titrimetric method. The content of CaF2 was calculated. The determination results were satisfied, the method was feasible and suitable for the daily production need in metallurgy factory.
Keywords：CaO based desulfurizerTCaCaOspectrometryEGTA titrimetric method
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 45-47 )