The effects of the amphoteric and basic oxides alumina and lime on the phase equilibria of copper matte and silica-saturated slags were investigated at 1300 °C and PSO2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ P_{{{\text{SO}}_{ 2} }} $$\end{document} = 0.1 atm in a controlled CO-CO2-SO2-Ar gas atmosphere using a high-temperature isothermal equilibration technique followed by rapid quenching. The equilibrium phase compositions were obtained by Electron Probe X-ray Microanalysis. The relationship between the copper concentration in matte and the oxygen partial pressure, iron, and sulfur in matte was quantified. The pure iron-silicate slag exhibited the highest copper loss in slag, although the addition of alumina and lime decreased its value by approximately a quarter and a half, respectively, at a matte grade of 65 wt pct Cu. In contrast, copper and sulfur were highly distributed in the matte phase, and their deportment to the matte was favored by addition of alumina and lime.

中文翻译：

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火法冶金 WEEE 处理中冰铜和二氧化硅饱和的 FeOx-SiO2 基渣的相平衡实验研究

在 1300 °C 和 PSO2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \ 研究了两性和碱性氧化物氧化铝和石灰对冰铜和二氧化硅饱和炉渣的相平衡的影响usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ P_{{{\text{SO} }_{ 2} }} $$\end{document} = 0.1 atm，在受控的 CO-CO2-SO2-Ar 气氛中，使用高温等温平衡技术，然后快速淬火。通过电子探针X射线微量分析获得平衡相组成。对哑光中的铜浓度与哑光中的氧分压、铁和硫之间的关系进行了量化。纯铁硅酸盐炉渣在炉渣中表现出最高的铜损失，尽管在 65 重量百分比铜的锍品位下，添加氧化铝和石灰分别降低了其价值约四分之一半。相比之下，铜和硫在哑光相中高度分布，添加氧化铝和石灰有利于它们在哑光相中的表现。