Effect of oxygen blowing on the competitive removal rate of silicon and iron from molten copper

被引：0

作者：

Park, Jooho ^{[1
,2
]}

Kwon, Sun-Kuk ^{[3
]}

Lee, Jung-Eui ^{[3
]}

Kang, Youngjo ^{[4
]}

Park, Joo Hyun ^{[1
]}

机构：

[1] Hanyang Univ, Dept Mat Sci & Chem Engn, Ansan 15588, South Korea

[2] Hyundai Steel, Tech Res Ctr, Dangjin 31719, South Korea

[3] MetalGenTech Co Ltd, Seoul 08501, South Korea

[4] Dong A Univ, Dept Mat Sci & Engn, Busan 48315, South Korea

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2023年 / 23卷

关键词：

Oxygen blowing; Silicon; Iron; Interfacial reaction area; Rate constant; Liquid phase mass transfer; SURFACE-TENSION; KINETICS; DIFFUSION; BEHAVIOR;

D O I：

10.1016/j.jmrt.2023.02.106

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of blown oxygen on the competitive removal of impurities from liquid copper was investigated at 1673 K. Silicon and iron, which are the dominant impurities in molten copper, are clearly separated into the slag by oxygen blowing. Since the area of the reaction site for impurities' oxidation was found to be one of the most influential aspects, the interfacial area for both cases of top-blowing and bottom blowing was carefully estimated by considering bubbles and cavity formation. The removal rate of the impurities in competitive oxidation regime could be theoretically analyzed. By a comparison of the apparent rate constant obtained from the oxidation experiments with that was theoreti-cally calculated, the present kinetic model based on liquid phase mass transfer of impu-rities could be verified to be valid for the understanding the competitive removal of the impurities from liquid copper.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：4634 / 4641

页数：8

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