Phase Equilibria of Ferrous-Calcium Silicate Slags in the Liquid/Spinel/White Metal/Gas System for the Copper Converting Process

被引：5

作者：

Sun, Yongqi ^{[1
]}

Chen, Mao ^{[1
]}

Cui, Zhixiang ^{[2
]}

Contreras, Leonel ^{[3
]}

Zhao, Baojun ^{[1
]}

机构：

[1] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia

[2] Dongying Fangyuan Nonferrous Met, Dongying 257000, Peoples R China

[3] Natl Copper Corp Chile, Huefanos 1270, Santiago, Chile

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2020年 / 51卷 / 05期

关键词：

HIGH PARTIAL PRESSURES; 1573; K; CHROMITE; MATTE;

D O I：

10.1007/s11663-020-01887-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ferrous calcium silicate (FCS) slags are reported to have high potential for use in the copper converting process. However, no phase equilibrium study has been carried out under a simulated converting gas atmosphere in the presence of SO2. In this study, under accurately controlled P(SO2) 0.4 atm and P(O-2) 10(-6)atm, the phase equilibria of FCS slags in a liquid/spinel/white metal/gas system were investigated for the copper converting process. The liquidus temperatures of slags in the Fe-Ca-Cu-Si-S-O system were quantified as well as the solid solubilities of Cu2O in the spinel phase. The experimental results were compared with the FactSage predictions, which provided clues for further improvement of the thermodynamic modelling. The applications of the FCS slags were further discussed and compared with iron silicate slags. The results obtained will contribute to slag development for converting operations and thermodynamic calculations.

引用

页码：2012 / 2020

页数：9

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