Direct-to-blister Smelting of High-Alumina Chalcocite Based on Al2O3-CaO-SiO2 Slag System

被引：1
|
作者：
Tian, Bo [1 ,2 ]
Wei, Yonggang [1 ,2 ]
Zhou, Shiwei [1 ,2 ]
Li, Bo [1 ,2 ]
机构：
[1] Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cle, Kunming 650093, Yunnan, Peoples R China
[2] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2023年 / 76卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Direct-to-blister smelting; Al2O3-CaO-SiO2; Copper recovery; Structure; Viscosity; VISCOSITY; BEHAVIOR; AL2O3;
D O I：
10.1007/s12666-023-03000-5
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Reasonable slag type is the key to the smooth progress of smelting. In this study, the direct-to-blister smelting experiment was carried out on a laboratory scale using high-alumina chalcocite as raw material and using Al2O3-CaO-SiO2 slag system. The changes of the copper recovery with the ratio of CaO/SiO2 and the content of Al2O3 were studied. The phase composition, structural characteristics and copper loss of the slag were analyzed by XRD, SEM-EDS, FTIR and Raman spectroscopy. The results show that when the CaO/SiO2 is 1 and the Al2O3 content is 20%, the copper recovery reaches the maximum, which is 91.69%. The effects of CaO/SiO2 ratio and Al2O3 content on slag structure and viscosity at 1340celcius were analyzed in detail. The precipitation of high melting point phases and the change in aluminosilicate structure are the main reasons for the influence of slag viscosity.
引用
收藏
页码：3293 / 3301
页数：9
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