Lead solubility in FeO{sub x}-CaO-SiO{sub 2} slags at iron saturation

Journal Article · Tue Feb 01 04:00:00 EST 2000 · Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

DOI:https://doi.org/10.1007/s11663-000-0126-8· OSTI ID:20015466

Kudo, Masami; Jak, E; Hayes, P; Yamaguchi, Katsunori; Takeda, Yoichi

Experiments have been carried out to determine the equilibria between FeO{sub x}-CaO-SiO{sub 2} slag and lead metal in iron crucibles at temperatures ranging from 1,473 to 1,573 K. It has been found that the highest lead solubilities are observed in the silica-saturated iron silicate slags, while the lowest solubilities are observed in the CaO-saturated calcium ferrite slags. The activity coefficient of PbO varies from 0.15 to 3, depending on the slag composition. Changes in temperature do not have a significant impact on the activity coefficient. The activity of FeO and pct Fe{sup 3+}/pct Fe{sup 2+} ratios have been determined as a function of slag composition. These new experimental data have been incorporated into an optimized thermodynamic slag model using the computer package FACT.

• Research Organization: Iwate Univ., Morioka (JP)
• OSTI ID: 20015466
• Journal Information: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Journal Name: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science Journal Issue: 1 Vol. 31; ISSN MTBSEO; ISSN 1073-5615
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CALCIUM OXIDES
F CODES
IRON OXIDES
LEAD
METAL INDUSTRY
SILICON OXIDES
SLAGS
SMELTERS
SOLUBILITY
SOLVENT PROPERTIES