Article
Engineering, Environmental
Zengwu Wang, Jintao Gao, Xi Lan, Guoliang Feng, Zhancheng Guo
Summary: A new method for continuously recovering copper droplets from copper matte smelting slag via super-gravity was proposed and its efficient recovery of copper resources was validated through experiments.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Chemistry, Multidisciplinary
Hongliang Zhao, Baozhong Ma, Shuang Hong, Hao Huang, Fengqin Liu, Hong Yong Sohn
Summary: In this study, a reduction-sulfurization smelting method was used to recover copper and cobalt from converter slags by using spent pot lining as the reductant. The experiments showed that under suitable conditions, copper and cobalt recovery rates exceeded 98% and 96%, respectively.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Christian M. G. Rodrigues, Menghuai Wu, Anton Ishmurzin, Gernot Hackl, Nikolaus Voller, Andreas Ludwig, Abdellah Kharicha
Summary: A modeling framework was established to simulate freeze-lining formation and its dependency on operating conditions. The model accurately predicted freeze-lining formation, energy balance, and flow behavior, and revealed the relationship between freeze-lining thickness and operating parameters. This study offers the potential to optimize furnace operations.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2023)
Article
Engineering, Chemical
Huibin Zhang, Yanan Wang, Yuzheng He, Shenghang Xu, Bin Hu, Huazhen Cao, Jun Zhou, Guoqu Zheng
Summary: This study introduces an integrated disposition method for handling hazardous arsenic by returning arsenic-bearing byproducts to the copper flash smelting process, achieving a balance of arsenic brought in and out of the copper production system. The research indicates the promising potential of the copper flash smelting process for efficient and safe disposition of arsenic via recirculation processing of arsenic-bearing byproducts.
MINERALS ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Shuai Wang, Guang Li, Yufeng Guo, Feng Chen, Jianfa Jing, Jinlai Zhang, Lingzhi Yang, Guanzhou Qiu
Summary: In this study, the effects of MnO on the electric furnace smelting of vanadium titanomagnetite pre-reduced pellets were systematically investigated. The results showed that the addition of MnO in appropriate amounts could reduce the viscosity of titanium slag, promote the separation of iron from the slag, and improve the reduction degree of vanadium oxides.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Metallurgy & Metallurgical Engineering
Xingbang Wan, Leiting Shen, Ari Jokilaakso, Hurman Eric, Pekka Taskinen
Summary: This study focuses on improving metal-slag separation in pyrometallurgical processes through simulation and modeling, since direct observations are not possible. The research investigated the kinetics and mechanisms of chemical reactions between matte droplets and slag at a typical smelting temperature of 1300 degrees C in both air and argon atmosphere. Results in argon atmosphere suggest that the oxidation of cuprous sulfide by ferric ions in the slag strongly contributes to copper losses in the slag.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2021)
Article
Materials Science, Multidisciplinary
Guohua Wang, Yaru Cui, Jian Yang, Xiaoming Li, Shufeng Yang, Junxue Zhao, Hongliang Tang
Summary: By modifying the composition of the original slag, this study increased the SiO44- content in nickel matte smelting slag, reduced the polymerization of the silicate network, and found that CaO-modified nickel slags have appropriate melting temperature and viscosity characteristics, making them suitable for nickel flash matte smelting.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Shenghang Xu, Weilun Qian, Jiankang Tan, Huibin Zhang, Huazhen Cao, Jun Zhou, Guoqu Zheng
Summary: The study investigates the formation mechanism of egg-type structure in copper slag concentrates, where arsenic (As) element is accompanied by Cu-rich phase, potentially increasing the burden of the smelting system. The findings may provide theoretical guidance for separating As and Cu elements in the copper smelting system.
Article
Metallurgy & Metallurgical Engineering
Ye A. Ospanov, S. A. Kvyatkovskiy, S. M. Kozhakhmetov, L. Sokolovskaya, A. S. Semenova, M. Dyussebekova, A. A. Shakhalov
Summary: In order to reduce the loss of copper in slag, it is necessary to optimize the autogenous smelting process of copper sulfide concentrates and intensify the thermal regime. Physico-chemical studies of the slag produced during the smelting process were conducted, revealing that the formation of an intermediate layer between the slag and matte is dependent on the temperature and magnetite content in the slag. Melting the slag phases is found to be a critical condition for complete separation of slag and matte and prevention of intermediate layer formation.
CANADIAN METALLURGICAL QUARTERLY
(2023)
Article
Metallurgy & Metallurgical Engineering
Alexander Klyushnikov, Svetlana Sergeeva, Roza Gulyaeva, Alexander Vusikhis, Lyudmila Udoeva, Stanislav Tyushnyakov
Summary: The study focuses on determining the viscosity of molten slags from the joint smelting of oxidized nickel and sulfide copper ores. Experimental data and empirical models were used to predict the viscosity of the slags within the temperature range. The results indicate that reducing the basicity improves the viscosity, and it is recommended to carry out the joint smelting at a temperature not lower than 1400 degrees C.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Materials Science, Multidisciplinary
Denis Shishin, Ata Fallah Mehrjardi, Maksym Shevchenko, Taufiq Hidayat, Evgueni Jak
Summary: This study is part of a series of integrated experimental and modeling studies that aim to predict the formation conditions of matte during the pyrometallurgical processing of lead. By combining experimental data and thermodynamic databases, the researchers developed solution models for different phases and applied them to the processing of lead-containing materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Green & Sustainable Science & Technology
Huimin Tang, Zhiwei Peng, Zhizhong Li, Yutian Ma, Jian Zhang, Lei Ye, Liancheng Wang, Mingjun Rao, Guanghui Li, Tao Jiang
Summary: The feasibility of a facile route to recover platinum-group metals from spent catalyst by microwave smelting with the additions of nickel matte and sodium salts was confirmed. The addition of sodium salts effectively reduced viscosity and smelting temperature, facilitating the collection of PGMs. The optimal conditions resulted in high collection rates of Pt, Pd, and Rh, showcasing a new strategy for energy conservation and environmental protection.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Civil
Krzysztof Gargul, Bozena Boryczko, Piotr Handzlik, Piotr Noga, Piotr Palimaka
Summary: Coppermaking from sulfide concentrates typically involves smelting and converting steps. However, in the continuous direct-to-copper smelting process, these steps are combined to reduce energy consumption and costs. Despite its advantages, a disadvantage of this process is the dissolution of copper in the slag, leading to significant recovery costs.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Crystallography
Pavel Grudinsky, Dmitry Zinoveev, Alex Kondratiev, Leonid Delitsyn, Ruslan Kulumbegov, Anton Lysenkov, Pavel Kozlov, Valery Dyubanov
Summary: This study focuses on the reduction smelting of Waelz slag to produce iron-based alloy. Thermodynamic simulation and reduction smelting experiments were conducted to predict temperatures and compositions. The experiments confirmed the feasibility of Waelz slag reduction smelting from EAF dust processing.
Article
Green & Sustainable Science & Technology
Jun Luo, Guanghui Li, Mingjun Rao, Zhiwei Peng, Guoshen Liang, Tao Jiang, Xueyi Guo
Summary: This study verified the feasibility of decreasing smelting temperature by controlling slag formation for energy-saving production, upgraded the slag regulation method, effectively reducing energy consumption and carbon dioxide emissions.
JOURNAL OF CLEANER PRODUCTION
(2021)
