Results 21 to 30 of about 65,980 (242)
Metals, 2023 In order to reveal the influence of ammonium salts on the rare earth leaching process of weathered crust elution-deposited rare earth ores, ammonium acetate, ammonium chloride, and ammonium sulfate were used as leaching agents.
Zhenyue Zhang +5 more
doaj +1 more source
Metal leaching test of commercially available faucets in the Japanese market in 2016–2020
Journal of Water and Health, 2022 In this study, metal leaching was investigated in commercially available faucets in Japan to clarify their compliance to Japanese regulations. We purchased 37 faucets from the market and analyzed the leaching of cadmium, mercury, selenium, lead (Pb ...
Taro Miyoshi +4 more
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工程科学学报, 2023 Manganese is one of the important strategic resources in China, and there is a saying that “no manganese, no steel”. In 2020, China’s output of electrolytic metal manganese was 1501300 tons, accounting for 96.5% of the global output.
Jun-jie ZHAO +5 more
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MetalsA novel acid-free oxygen pressure leaching for the extraction of zinc from hemimorphite was proposed in this study. Green vitriol (FeSO4·7H2O), as one of the important industrial by-products, was used as the leaching reagent to separate zinc from silicon
Tong Wang +6 more
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Recent Progress in Electric Furnace Titanium Slag Processing and Utilization: A Review
Crystals, 2022 Titanium slags produced through ilmenite electric furnace smelting contain 60–80%TiO2, a vital titanium resource in the titanium industry. The processing and utilization of titanium slag is faced with many challenges, such as complex mineral structures ...
Jianfa Jing +5 more
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Mongolian Journal of Chemistry, 2023 This research investigates the extraction of copper from copper-containing leaching residue, which includes 33.45% of copper, 14.14% of iron, 23.87% of sulfur and trace amounts of silver and other elements.
Nyamdelger Shirchinnamjil +6 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi +7 more
wiley +1 more source
Research progress of non-cyanide gold leaching in gold mines
工程科学学报, 2021 With the exhaustion of easy-to-treat gold ore resources, gold ores containing arsenic, carbon, high sulfur, and ultrafine particles have become the focus of gold mining.
Ke-bo PENG +7 more
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Heap Leaching Simulation [PDF]
IFAC Proceedings Volumes, 1998 Abstract Ore leaching techniques combined with solution treatment procedures offer exceptional conditions to produce high purity metal from very low-grade ore sources. Essential percentage of the world copper production is based on the heap and dump leaching techniques.
Jämsä-Jounela, Sirkka-Liisa +1 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du +4 more
wiley +1 more source