IF 2.3 4区材料科学

JOM Pub Date : 2025-08-25 DOI: 10.1007/s11837-025-07623-5

Ethan Benderly-Kremen, Katrin Daehn, Antoine Allanore

{"title":"Gallium and Indium Selective Sulfidation and Vapor Phase Transport from e-Waste Feedstocks","authors":"Ethan Benderly-Kremen, Katrin Daehn, Antoine Allanore","doi":"10.1007/s11837-025-07623-5","DOIUrl":"10.1007/s11837-025-07623-5","url":null,"abstract":"<div><p>Gallium (Ga) and indium (In) share similarities in their chemical behavior, their dilute presence in waste electronics (e-waste), and recycling rates close to 0% from such streams. Designing processes to extract gallium from LED chips and indium from LCD screens simultaneously reveals the potential and necessary distinctions for a flexible process based on elemental sulfur reactivity, which can be applied to both feedstocks. Whereas Ga- and In-compounds found in e-waste (gallium nitride, GaN; indium tin oxide, ‘ITO’) are recalcitrant to dissolution in aqueous feedstocks, the reaction with sulfur gas to form volatile sulfides may support their selective extraction from prepared e-waste. Process conditions for selective sulfidation are herein informed from thermodynamics and demonstrated experimentally. Vapor phase transport of the volatile sulfides is a powerful means to collect and enrich gallium and indium. Practical implementation likely calls for physical separation approaches to disassemble e-waste, remove excess material (epoxy, glass, metallic leads, and housing) from LED chips, and expose the ITO layer within LCD screens.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 10","pages":"7415 - 7434"},"PeriodicalIF":2.3,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11837-025-07623-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Suspension Roasting in Enhancing Gold Leaching Efficiency and Modifying Pore Structure in High-Sulfur, Carbonaceous, Arsenic-Bearing Refractory Gold Ores 悬浮焙烧提高高硫、碳质、含砷难浸金矿金浸出效率及改变孔隙结构

IF 2.3 4区材料科学

JOM Pub Date : 2025-08-21 DOI: 10.1007/s11837-025-07609-3

Hua Dong, Jianping Jin, Xinran Zhu, Yanjun Li, Yuexin Han

{"title":"Suspension Roasting in Enhancing Gold Leaching Efficiency and Modifying Pore Structure in High-Sulfur, Carbonaceous, Arsenic-Bearing Refractory Gold Ores","authors":"Hua Dong, Jianping Jin, Xinran Zhu, Yanjun Li, Yuexin Han","doi":"10.1007/s11837-025-07609-3","DOIUrl":"10.1007/s11837-025-07609-3","url":null,"abstract":"<div><p>As one of the primary sources for gold recovery, the recovery efficiency of gold from high-sulfur-containing carbon and arsenic refractory gold ore is far from satisfactory. The suspension roasting process can enhance the gold leaching effect. According to thermodynamic analysis, sulfur and arsenic are oxidized into gaseous products, while ankerite and muscovite are decomposed. The experimental results showed that two-step suspension roasting achieved a higher leaching rate than one-step roasting for such ore. Under the condition of two-step suspension roasting, the gold leaching rate reached 84.77%. Suspension roasting increased the distribution rate of gold in bared and semi-bared forms while reducing the arsenic distribution rate in arsenopyrite. Analysis of the calcine’s pore structure indicated that increasing roasting temperature, time, and oxygen concentration promotes pore formation. However, excessively high parameters may lead to sintering and the \"secondary wrapping\" of arsenic, which blocks pore structures, hinders contact between gold and leaching agents, and ultimately reduces leaching efficiency.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 10","pages":"7361 - 7375"},"PeriodicalIF":2.3,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Speciation and Leaching of Chromium in Calcium-Free Sintering of Newly Returned Chrome Slag 新回收铬渣无钙烧结中铬的形态及浸出研究

IF 2.3 4区材料科学

JOM Pub Date : 2025-08-21 DOI: 10.1007/s11837-025-07638-y

Nian Hu, Hao Yuan, Yuanzhuo Qiu, Xuqing Liu, Liang Li

引用次数: 0

Tailoring Layered Structure and Tensile Properties of High-Nb TiAl Alloy Fabricated by Electron Beam Melting: Role of Line Offset and HIP 电子束熔炼制备高铌TiAl合金的分层结构和拉伸性能：线偏移和HIP的作用

IF 2.3 4区材料科学

JOM Pub Date : 2025-08-21 DOI: 10.1007/s11837-025-07637-z

Bochao Lin, Wei Chen, Jun Liu, Bin Tang, Yang Yang, Fan Wu

引用次数: 0

Turning Waste into Treasure, Recovery of Lepidolite Flotation from a Tungsten Tailings by Combination of Collectors 变废为宝——组合捕收剂回收某钨尾矿中锂云石浮选

IF 2.3 4区材料科学

JOM Pub Date : 2025-08-19 DOI: 10.1007/s11837-025-07611-9

Jihan Gu, Xinyang Yu

引用次数: 0

Microstructure Regulation and Synergistic Deformation of As-Sintered Al and Mg Alloy During Roll Bonding 烧结铝镁合金轧制结合过程中的组织调控及协同变形

IF 2.3 4区材料科学

JOM Pub Date : 2025-08-19 DOI: 10.1007/s11837-025-07599-2

Tao Wang, Ming Liang, Lun Yang, Yunzhu Ma, Wensheng Liu

{"title":"Microstructure Regulation and Synergistic Deformation of As-Sintered Al and Mg Alloy During Roll Bonding","authors":"Tao Wang, Ming Liang, Lun Yang, Yunzhu Ma, Wensheng Liu","doi":"10.1007/s11837-025-07599-2","DOIUrl":"10.1007/s11837-025-07599-2","url":null,"abstract":"<div><p>In this paper, the problems of bending and edge cracking in the 2A12-Al/AZ31-Mg laminated metal composites (LMCs) prepared during roll bonding (RB) were studied systematically. The results show that the formation of bending and edge cracks is due to the difference in microstructure and mechanical properties between as-sintered 2A12 aluminum alloy (S-2A12-Al alloy) and as-sintered AZ31 magnesium alloy (S-AZ31-Mg alloy). This leads to the different plastic deformation ability of the two alloys, and they cannot achieve synergistic deformation during RB. The synergistic deformation of the two plates can be achieved by pre-rolling deformation and annealing treatment before RB. This can effectively solve the bending and edge crack problems of 2A12-Al/AZ31-Mg LMCs during RB. Therefore, the S-2A12-Al alloy was first pre-rolled with 40% reduction at 300°C and then annealed at 420°C for 60 min, while the S-AZ31-Mg alloy was pre-rolled with 60% reduction at 300°C. Finally, the pretreated S-2A12-Al alloy and S-AZ31-Mg alloy were roll-bonded at 300°C, and the 2A12-Al/AZ31-Mg LMCs, with no bending or edge cracks, were successfully prepared.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 10","pages":"7435 - 7448"},"PeriodicalIF":2.3,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tune In: Three Podcasts to Try From TMS Members 收听：三个播客尝试从TMS成员

IF 2.3 4区材料科学

JOM Pub Date : 2025-08-18 DOI: 10.1007/s11837-025-07646-y

Kelly Zappas

引用次数: 0

TMS Member News TMS会员新闻

IF 2.3 4区材料科学

JOM Pub Date : 2025-08-14 DOI: 10.1007/s11837-025-07645-z

引用次数: 0

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IF 2.3 4区材料科学