Investigation on the Matte/Slag/Spinel/Gas Equilibria in the Cu-Fe-O-S-SiO2-(CaO, Al2O3) system at 1250 °C and pSO2 of 0.25 atm

被引：5

作者：

Chen, Min ^{[1
]}

Avarmaa, Katri ^{[1
,2
]}

Taskinen, Pekka ^{[1
]}

Michallik, Radoslaw ^{[3
]}

Jokilaakso, Ari ^{[1
]}

机构：

[1] Aalto Univ, Sch Chem Engn, Dept Chem & Met Engn, Kemistintie 1F,POB 16100, FI-00076 Aalto, Finland

[2] Swinburne Univ Technol, Dept Mech & Prod Design Engn, Melbourne, Vic, Australia

[3] Geol Survey Finland, Espoo, Finland

来源：

MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW | 2023年 / 44卷 / 04期

关键词：

Phase equilibria; copper smelting; spinel; slag chemistry; thermodynamics; S-SI SYSTEM; A-DEGREES-C; COPPER SMELTING SLAGS; GAS/SLAG/MATTE/TRIDYMITE EQUILIBRIA; PHASE-EQUILIBRIUM; THERMODYNAMIC CONSIDERATIONS; PARTIAL PRESSURES; PRECIOUS METALS; 1573; K; MATTE;

D O I：

10.1080/08827508.2022.2047966

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The equilibrium-phase relations between copper mattes and spinel-saturated iron silicate slags were investigated at 1250 degrees C and pSO(2) of 0.25 atm. The experiments were conducted in synthesized spinel crucibles (Fe3O4) in controlled CO-CO2-SO2-Ar gas mixtures using a high-temperature isothermal equilibration/quenching technique. The equilibrium-phase compositions were characterized using an electron probe X-ray microanalyzer. The compositions of matte and slag were displayed as a function of matte grade or oxygen partial pressure. The present results obtained at spinel saturation in the matte-slag equilibrium system were compared with observations in the literature. This study improves the experimental thermodynamic data on the matte-slag-spinel-gas equilibria systems.

引用

页码：313 / 324

页数：12

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[1] The Effect of MgO on Gas-Slag-Matte-Tridymite Equilibria in Fayalite-Based Copper Smelting Slags at 1473 K (1200 °C) and 1573 K (1300 °C), and P(SO2)=0.25 atm [J].