Journal of Sustainable Metallurgy

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High-Temperature Vacuum Treatment of Aluminum Electrolytic Spent Carbon Cathode
Journal of Sustainable Metallurgy - Tập 8 - Trang 1204-1214 - 2022
Xin Xin, Junxue Zhao, Ailin Hu, Ze Wang, Yi Kang, Mengmeng Ren, Bin Li, Wendan Tang
The spent carbon cathode (SCC) produced in the aluminum electrolysis process has been listed as hazardous waste due to excessive soluble fluoride and cyanide. In a high-temperature vacuum environment, the soluble fluoride and cyanide in SCC can be evaporated and decomposed, respectively. As a result, its impact on the environment can be eliminated. The remains and volatiles can be collected for re...... hiện toàn bộ
Characterization of Chromiferrous Pyroxenite and Its Application as Flux in Ferrochrome Production Through an Industrial-Scale Submerged Arc Furnace
Journal of Sustainable Metallurgy - Tập 8 Số 4 - Trang 1650-1661 - 2022
Nilamadhaba Sahu, Sunil Kumar Tripathy, Umesh Prasad Rath, Biranchi Narayan Rout, Aditya Roshan, Gajanan Kapure, Arijit Biswas
Controlled Ledge Profile of Aluminum Smelting Cell Using Sidewalls Heat Exchangers Supplied with Molten Salt
Journal of Sustainable Metallurgy - - 2023
Zhou Sen, Mouhamadou A. Diop, Bingliang Gao, Zhaowen Wang
Nickel Metal Hydride Battery Waste: Mechano-hydrometallurgical Experimental Study on Recycling Aspects
Journal of Sustainable Metallurgy - Tập 6 - Trang 78-90 - 2020
Antti Porvali, Severi Ojanen, Benjamin P. Wilson, Rodrigo Serna-Guerrero, Mari Lundström
In this research, the recycling of industrially collected and crushed nickel metal hydride battery waste, rich in valuable metals such as Ni and rare earth elements (REE), was investigated. The crushed waste was characterized based on elemental distribution per particle size class and density. Although issues with sieving, such as agglomeration of shredded separator fibers, were observed, a good s...... hiện toàn bộ
Recovery of Rare-Earth Elements from Molten Salt Electrolytic Slag by Fluorine Fixation Roasting and Leaching
Journal of Sustainable Metallurgy - Tập 8 - Trang 522-531 - 2022
Peng Xing, Huiquan Li, Chunlin Ye, Liqin Zhong
Recycling waste containing rare earth has always been a research hotspot. The molten salt electrolysis process of rare-earth metals and alloys generates a large amount of waste slag, which contains high rare-earth content and, thus, has very considerable recovery value. However, the high content of fluorine in rare-earth molten salt slag brings challenges to the separation of rare-earth elements (...... hiện toàn bộ
Progress in Waste Lead Paste Recycling Technology from Spent Lead–Acid Battery in China
Journal of Sustainable Metallurgy - Tập 8 - Trang 978-993 - 2022
Xiaowu Jie, Zhichao Yao, Chengyan Wang, Dingfan Qiu, Yongqiang Chen, Yonglu Zhang, Baozhong Ma, Wei Gao
The incorporation of lead into most consumer items such as gasoline, paints, and welding materials is generally prohibited. However, lead–acid batteries (LABs) have become popular and have emerged as a major area where lead is utilized. Appropriate recycling technologies and the safe disposal of LABs (which contain approximately 65% lead) and lead-containing waste are, therefore, vital for the sus...... hiện toàn bộ
Ionic Liquids and Deep-Eutectic Solvents in Extractive Metallurgy: Mismatch Between Academic Research and Industrial Applicability
Journal of Sustainable Metallurgy - Tập 9 - Trang 423-438 - 2023
Koen Binnemans, Peter Tom Jones
The past 10–20 years have seen numerous academic papers describing the benefits of ionic liquids (ILs) and deep-eutectic solvents (DESs) for leaching, solvent extraction and electrowinning. The scientific community—including the authors of this opinion article—have frequently proclaimed these neoteric solvents as game-changers in extractive metallurgy. Despite this, there have been no commercial b...... hiện toàn bộ
Experimental Study and Thermodynamic Calculations in the CaO–Cu2O–FeO–Fe2O3–SiO2 System for Applications in Novel Copper-Based Processes
Journal of Sustainable Metallurgy - Tập 7 - Trang 300-313 - 2021
Denis Shishin, Maksym Shevchenko, Evgueni Jak
A combination of high-temperature experiments and thermodynamic modeling in the CaO–Cu2O–FeO–Fe2O3–SiO2 system provides the fundamental information necessary to design and improve processes such as WEEE recycling through black copper route, continuous converting of copper matte, copper dross smelting, slag cleaning, and valorization of copper slag. In the experiments, samples were equilibrated on ...... hiện toàn bộ
Recovery of Rare-Earth Elements from Neodymium Magnet Waste Using Glycolic, Maleic, and Ascorbic Acids Followed by Solvent Extraction
Journal of Sustainable Metallurgy - Tập 5 - Trang 85-96 - 2018
Marino Gergoric, Antonin Barrier, Teodora Retegan
Rare-earth elements (REEs) play a key role in modern societies as their usage keeps increasing in new technologies and green energy sources. However, they are also considered the most critical raw materials in the EU and the USA in terms of supply. There is an increased global interest in the recycling of REEs from end-of-life products and industrial waste. Some REEs, such as Nd, Pr, and Dy, can b...... hiện toàn bộ
Effect of Na2O Addition on Phosphorus Dissolution from Steelmaking Slag with High P2O5 Content
Journal of Sustainable Metallurgy - Tập 3 - Trang 671-682 - 2017
Chuan-ming Du, Xu Gao, Shigeru Ueda, Shin-ya Kitamura
Slag with high P2O5 content generated during the use of high-P iron ores is an important potential source of phosphate. Because the P-rich 2CaO·SiO2–3CaO·P2O5 solid solution in the slag was preferentially dissolved compared with other phases in aqueous solutions, selective leaching of P from slag with high P2O5 content was applied to recover soluble P in this study. To improve dissolution of the ...... hiện toàn bộ
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