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
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)
Review
Green & Sustainable Science & Technology
Wentao Zhou, Xiao Liu, Xianjun Lyu, Wenhao Gao, Huili Su, Chuanming Li
Summary: China's copper resources are characterized by low grade and complex composition, producing a large amount of copper smelting slag (CSS) containing valuable elements such as copper and iron through smelting. Various methods for extracting and separating copper and iron from CSS are reported, including physical and chemical methods. This review provides guidance for the selection and development of secondary resources of CSS.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Qiang Yi
Summary: The high initial cost, financial fragility, and human resource management have significant impacts on renewable energy consumption. The study found that an increase in financial fragility significantly reduces renewable energy consumption, while human resources have a positive influence on renewable energy demand.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Long Wang, Arshad Ali, Houqi Ji, Jian Chen, Guqiang Ni
Summary: This study examines the relationship between renewable energy consumption, non-renewable energy consumption, climate change, and economic growth in five emerging Asian countries. The results show that renewable energy consumption significantly reduces climate change, while non-renewable energy consumption contributes to climate change. Additionally, GDP, investment in transport infrastructure, and urbanization also have significant impacts on climate change. Transitioning to renewable energy sources is the best option for climate change mitigation in these countries.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Metallurgy & Metallurgical Engineering
Hui -bin Zhang, Ya-nan Wang, Yin -bin Zhu, Peng Ren, Bin Hu, Sheng-hang Xu, Hua-zhen Cao, Jun Zhou, Guo-qu Zheng
Summary: The accurate understanding of arsenic (As) species distribution and their leaching toxicity in copper smelting slag is crucial for its efficient and safe disposition. Various analytical techniques were employed to investigate the As species in the slag and evaluate their potential toxicity. The results revealed that As existed in various forms in the slag, including water-soluble As, Cu-As intermetallics, Cu-As sulfides, as well as As incorporated in fayalite and glassy silicates. Flotation of readily soluble As and Cu-As intermetallics was effective in reducing the leaching toxicity of slag tailings and meeting the regulatory thresholds for As set by USEPA and SEPA.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Environmental Sciences
Teng Su, Ishtiaq Ahmad, Abdul Qayyum, Weihua Yin, Saeed ur Rahman, Rana Muhammed Adeel-Farooq
Summary: Energy consumption plays a vital role in economic development and environmental degradation. Technical innovation, human resources, and energy pricing have a negative impact on long-term energy consumption in OECD countries, while economic growth and trade openness contribute positively to energy demand in both short and long term.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Thermodynamics
Farhad Taghizadeh-Hesary, Ehsan Rasoulinezhad, Muhammad Shahbaz, Xuan Vinh Vo
Summary: The research finds that energy transition positively impacts electricity consumption in Asian countries, but countries of different income levels have different sensitivities to inflation, electricity pricing, and population growth. Therefore, Asian countries need to consider economic sustainability and technological efficiency when implementing energy transition policies.
Article
Engineering, Chemical
Hussain Ahmed, Luis Ricardez-Sandoval, Matti Vilkko
Summary: Copper losses during PSC operation are a major concern in copper smelting, with the primary objectives being to produce blister copper quickly and minimize losses. A linear multi-period scheduling framework is proposed to optimize PSC operations, with an industrial case study demonstrating its effectiveness. This solution may be applicable to other smelting processes and aid in the design of inter-PSC scheduling frameworks.
Article
Environmental Sciences
Taiming Zhang, Jiemin Yin, Zhenghao Li, Yitong Jin, Arshad Ali, Bin Jiang
Summary: This study aims to explore the relationship between renewable energy consumption, non-renewable energy consumption, carbon dioxide emissions, and economic growth in China, India, Bangladesh, Japan, South Korea, and Singapore during the period 1975-2020. The analysis shows that renewable energy consumption, non-renewable energy consumption, employed labor force, and capital formation significantly contribute to long-run economic growth. The study also finds that non-renewable energy consumption significantly increases long-term carbon emissions, while renewable energy consumption significantly reduces long-term carbon emissions.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Economics
Zeyun Li, Xuecheng Wei, Ata Al Shraah, Khurshid Khudoykulov, Gadah Albasher, Geovanny Gerano Reivan Ortiz
Summary: This paper empirically investigates the impact of green energy usage on environmental degradation in East Asian countries from 1990 to 2021. The study finds that green energy significantly reduces environmental degradation in China and Japan, but it is not effective in reducing it in Mongolia.
Review
Environmental Studies
Arshad Ali, Magdalena Radulescu, Daniel Balsalobre-Lorente
Summary: This study examines the linkages between renewable energy consumption, nonrenewable energy consumption, carbon dioxide emissions, and economic growth in emerging Asian countries. The findings suggest that renewable energy consumption, nonrenewable energy consumption, employed labor force, and capital formation contribute significantly to long-run economic growth. Furthermore, nonrenewable energy consumption increases carbon emissions, while renewable energy consumption reduces carbon emissions.
ENERGY & ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Baojun Zhao, Jinfa Liao
Summary: This paper reviews the history of the development of bottom-blowing copper smelting technology in China, which was initiated and developed in the 1990s. The technology involves injecting oxygen-enriched high-pressure gas to stir the molten bath consisting of matte and slag, resulting in rapid reactions at relatively lower temperatures and good adaptability of the feed materials.
Article
Environmental Sciences
Qin Zhang, Jiacheng Chen, Yanan Wu, Haipeng Liu, Bin Gu, Shen Hu, Hongying Yang
Summary: In this study, pyrite was ejected into the copper smelting flue gas to suppress the formation of SO(3), which causes serious corrosion in equipment and increases the amount of sewage acid. The thermogravimetric experiments revealed that pyrite in the flue system has a strong oxygen consumption capacity, which in turn suppresses the formation of SO(3).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Materials Science, Ceramics
Zhiqian Yu, Zhihong Liu, Fengchun Ye, Longgong Xia
Summary: This study investigated the corrosion mechanism of magnesia-chrome and alumina-chrome refractories in contact with smelting slag, and found that refractory-component dissolution and new phases formation were major causes of refractory degradation. Lower Al2O3 concentration and higher smelting temperature led to denser spinel layer formation, while high oxygen partial pressure favored spinel formation in magnesia-chrome refractories. In contrast, low oxygen partial pressure promoted spinel formation in alumina-chrome refractories.
CERAMICS INTERNATIONAL
(2022)