Lei Xu, Wenmi Chen, Shang Fan, Y C Zhang, Gao-jie Liang, Jian Zhou
{"title":"Study on the Effect of Humic Acid on Foam Formation in Bayer Process Decomposition Tanks","authors":"Lei Xu, Wenmi Chen, Shang Fan, Y C Zhang, Gao-jie Liang, Jian Zhou","doi":"10.1007/s40831-025-01394-8","DOIUrl":"https://doi.org/10.1007/s40831-025-01394-8","url":null,"abstract":"","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":"12 2","pages":"1225-1237"},"PeriodicalIF":0.0,"publicationDate":"2026-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147897687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yijun Quan, Sanjay Singhal, Zushu Li, Giovanni Montana
{"title":"Image-Segmentation-Guided Fragmentized Steel Scrap Tramp Material Characterization.","authors":"Yijun Quan, Sanjay Singhal, Zushu Li, Giovanni Montana","doi":"10.1007/s40831-026-01569-x","DOIUrl":"10.1007/s40831-026-01569-x","url":null,"abstract":"<p><strong>Abstract: </strong>As the British steel industry transitions to a scrap-based electric arc furnace route for steelmaking, steel scrap quality is becoming increasingly important. The chemical composition of fragmentized scrap, particularly the weight percentage of elements such as copper, strongly governs its suitability for high-quality steelmaking. However, existing chemical characterization techniques are too expensive and operationally impractical to deploy across the entire scrap stream, leaving composition estimates vulnerable to fluctuations in tramp element distributions introduced by unwanted residuals. To enable fast, cost-effective assessment, this work uses copper as an exemplar and investigates image-based classification for tramp element composition estimation for fragmentized scrap. Using commercial-grade scrap, an image dataset was manually curated to capture diverse mixtures of steel and copper fragments, with corresponding weight measurements and segmentation annotations collected for each sample image. A neural network was then trained using image segmentation, with the predicted segmentation maps provided as input to a classifier, achieving <math><mrow><mn>86.67</mn> <mo>%</mo></mrow> </math> accuracy in assigning images to the correct copper composition class and demonstrating the feasibility of computer vision methods for tramp element composition analysis in scrap quality monitoring.</p><p><strong>Graphical abstract: </strong></p>","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":"12 4","pages":"4399-4408"},"PeriodicalIF":3.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13396115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148584623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Samuel Senanu, Gudmundur Gunnarsson, Daniel Gunnarsson, Ole Kjos, Heiko Gaertner, Rauan Meirbekova, Jon Hjaltalin Magnusson
{"title":"Characterization of Off-Gases from an Inert Electrode Aluminum Electrolysis Cell.","authors":"Samuel Senanu, Gudmundur Gunnarsson, Daniel Gunnarsson, Ole Kjos, Heiko Gaertner, Rauan Meirbekova, Jon Hjaltalin Magnusson","doi":"10.1007/s40831-025-01348-0","DOIUrl":"https://doi.org/10.1007/s40831-025-01348-0","url":null,"abstract":"<p><p>Characterization of the off-gases from a 500 A inert electrode aluminum electrolysis cell operating at a temperature of ca. 800 °C has been conducted using characterization units comprising gas chromatography, tuneable diode laser spectroscopy, and Fourier-transform infrared spectroscopy. The off-gases detected from the inert electrode aluminum electrolysis cell have been compared to the off-gases released from the traditional Hall-Héroult aluminum electrolysis cell. All the measurements from the inert electrode cell confirmed oxygen as the main process gas during the electrolysis process. Hydrogen fluoride, HF, which is assumed to result from reactions between moisture in the alumina raw material or the surrounding air and the fluoride melt, was also observed together with gases assumed to come from air introduced, such as nitrogen and CO<sub>2</sub>. There were no indications that these gases came from the production process. A very small amount of SiF<sub>4</sub> was also detected.</p><p><strong>Graphical abstract: </strong></p>","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":"12 1","pages":"671-683"},"PeriodicalIF":3.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12830465/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146052906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Kinetic Analysis of Magnetite Reduction by Hydrogen in Temperature-Programmed System: Toward Green Ironmaking","authors":"Xuyang Lu, Qiang Xu, Haopeng Kang, Jian Shi, Bin Chen, Liejin Guo","doi":"10.1007/s40831-025-01354-2","DOIUrl":"https://doi.org/10.1007/s40831-025-01354-2","url":null,"abstract":"","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":"12 1","pages":"684-701"},"PeriodicalIF":0.0,"publicationDate":"2025-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mechanism and Properties of Carbon-Free Bonded Dry Vibration Mix Based on CaSO4–Mg(OH)2·2MgSO4","authors":"Shizhou Zhao, Ao Huang, Huazhi Gu, Yongshun Zou","doi":"10.1007/s40831-025-01249-2","DOIUrl":"https://doi.org/10.1007/s40831-025-01249-2","url":null,"abstract":"","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":"11 4","pages":"4405-4419"},"PeriodicalIF":0.0,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zeyu Wang, Yonghui Song, Ning Yin, Jiajun Shi, Sonja Lang, Yixin Wang
{"title":"Extraction for Separation of Zn and Cu in Cyanide Gold Extraction Wastewater by Hydrophobic Deep Eutectic Solvent","authors":"Zeyu Wang, Yonghui Song, Ning Yin, Jiajun Shi, Sonja Lang, Yixin Wang","doi":"10.1007/s40831-025-01252-7","DOIUrl":"https://doi.org/10.1007/s40831-025-01252-7","url":null,"abstract":"","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":"11 4","pages":"4284-4297"},"PeriodicalIF":0.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}