Removal of Copper from Molten Iron with Na2CO3-FeS Fluxes

被引：1

作者：

Uchida, Yu-ichi ^{[1
]}

Matsui, Akitoshi ^{[1
]}

Kishimoto, Yasuo ^{[1
]}

Miki, Yuji ^{[1
]}

机构：

[1] JFE Steel Corp, Steel Res Lab, Steelmaking Res Dept, Fukuyama, Hiroshima 7218510, Japan

来源：

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 2014年 / 100卷 / 06期

关键词：

Cu removal; hot metal; sulfidation; flux; ferrous sulfide; sodium carbonate; Cu partition ratio; optical basicity; OPTICAL BASICITY; STEEL; TEMPERATURE; GLASSES; SCALE; MELT;

D O I：

10.2355/tetsutohagane.100.769

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Synopsis : In order to develop a practical method of Cu removal from the viewpoints of promoting utilization of scrap procured in the market and reduction of energy consumption, it is necessary to develop a practical method of Cu removal. In this study, Cu removal from hot metal by sulfidation of Cu was identified as a potential candidate for industrial use and was investigated in laboratory experiments using ferrous sulfide (FeS) and sodium carbonate (Na2CO3) as commercially-available fluxes. A laboratory experiment on removal of Cu from hot metal was carried out using a 10 kg-scale furnace. Cu removal occurred while feeding the Na2CO3-FeS fluxes, and stopped after the end of flux feed. In the experimental temperature range, lower temperatures were advantageous for Cu removal reflecting the exothermic nature of Cu sulfidation. The dependence of Cu removal on the composition of the hot metal was also confirmed based on the analysis in terms of Cu partition ratio.

引用

页码：769 / 777

页数：9

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