Characterization of Phase Equilibria and Thermodynamics …
343
Fig. 2 Summary of distribution coefficients of minor elements (ME) between slag and liquid
metal in equilibrium with solid SiO 2 at 1200 °C in the following systems a Cu–Fe–O–Si–(ME),
slag/liquid copper, b Pb–Fe–O–Si–(ME), slag/liquid lead, and between slag and matte in equilibrium
with solid SiO 2 , at P(SO 2 ) = 0.25 atm and 1200 °C in the following systems, c Cu–Fe–O–S–Si–
(ME), slag/Cu 2 S–FeS matte, and d Pb–Fe–O–S–Si–(ME), slag/PbS–FeS matte. The lines represent
FactSage calculations with current internal PYROSEARCH database
comparison of slag/metal and slag/matte distribution coefficients of a number of
minor elements in copper and lead systems.
Most of the previous studies on minor element distributions reported in the literature on non-ferrous systems are focused on Cu– or Cu–Ni–systems. Very limited
data are available for the Pb– and Pb–Cu–systems. Examples of recent experimental
measurements of distributions of As, Sb, Cu, and Ag between PbO–FeO–Fe 2 O 3 –
CaO–SiO 2 slag and liquid Pb as a function of P(O 2 ) and slag composition are given
in [10]. The distributions of Ag, Au, Bi, and Zn between Pb metal and Pb–Fe–O–Si
slag are reported in [11]. The distribution coefficients between slag/liquid lead and
343
Fig. 2 Summary of distribution coefficients of minor elements (ME) between slag and liquid
metal in equilibrium with solid SiO 2 at 1200 °C in the following systems a Cu–Fe–O–Si–(ME),
slag/liquid copper, b Pb–Fe–O–Si–(ME), slag/liquid lead, and between slag and matte in equilibrium
with solid SiO 2 , at P(SO 2 ) = 0.25 atm and 1200 °C in the following systems, c Cu–Fe–O–S–Si–
(ME), slag/Cu 2 S–FeS matte, and d Pb–Fe–O–S–Si–(ME), slag/PbS–FeS matte. The lines represent
FactSage calculations with current internal PYROSEARCH database
comparison of slag/metal and slag/matte distribution coefficients of a number of
minor elements in copper and lead systems.
Most of the previous studies on minor element distributions reported in the literature on non-ferrous systems are focused on Cu– or Cu–Ni–systems. Very limited
data are available for the Pb– and Pb–Cu–systems. Examples of recent experimental
measurements of distributions of As, Sb, Cu, and Ag between PbO–FeO–Fe 2 O 3 –
CaO–SiO 2 slag and liquid Pb as a function of P(O 2 ) and slag composition are given
in [10]. The distributions of Ag, Au, Bi, and Zn between Pb metal and Pb–Fe–O–Si
slag are reported in [11]. The distribution coefficients between slag/liquid lead and