Metall. Res. Technol.
Volume 118, Number 2, 2021
|Number of page(s)||7|
|Published online||25 March 2021|
Impurity removal from brass alloy by slag refining treatment
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,
100083, PR China
2 State Key Lab of Metastable Materials Science and Technology, School of Mechanical Engineering, Yanshan University, Qinhuangdao 066000, PR China
3 School of Vehicle and Energy, Yanshan University, Qinhuangdao 066000, PR China
* e-mail: firstname.lastname@example.org
Accepted: 16 February 2021
Impurity removal from Cu-Zn (brass) alloy is an important issue for copper feedstock production. This study investigated brass alloy purification through the slag refining process using two kinds of agents, namely Cu2O and ZnO. The results showed that using ZnO as the slag to purify brass alloy for 1 h can remove impurities, such as Al, Pb, Fe, Ca, and Si, among which the removal efficiencies of Si reached to 60%. After the ZnO slag refining, the Zn loss ratio was only approximately 2%; thus, the brass alloy composition remained stable. The slag refining process using ZnO-contained slag did not only realize brass purification, but also maintained the brass composition stability.
Key words: brass alloy / slag refining / oxidation / impurity removal
© EDP Sciences, 2021
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