Results 101 to 110 of about 17,615 (267)

Critical Metals Hydrometallurgy [PDF]

JOM, 2015
In 2013, the E.U. Ad hoc Working Group on Raw Materials published its second criticality analysis report. The motivation to write this report came from the observation that in today’s world, our economies become more and more dependent on a number of metals and raw materials. Achzet et al.
openaire   +1 more source

Coagulant recovery from water treatment residuals: a review of applicable technologies [PDF]

, 2014
Conventional water treatment consumes large quantities of coagulant and produces even greater volumes of sludge. Coagulant recovery (CR) presents an opportunity to reduce both the sludge quantities and the costs they incur, by regenerating and purifying ...
Jarvis, Peter, Judd, Simon J., Keeley, James   +2 more
core   +1 more source

Enhanced oxidative sulfuric acid leaching of granite-type uranium ore by oxygen nanobubbles: Kinetics and mechanism

Nuclear Engineering and Technology
Developing eco-friendly and highly efficient uranium-enhanced leaching technologies is crucial for ensuring the reliable supply of uranium resources. This study integrates nanobubble (NB) technology into the acid leaching process of granite-type uranium ...
Ting Li, Guangyue Li, Xiaohui Liu, Jing Sun, Qian Li, Zhao Cui   +5 more
doaj   +1 more source

Recent advances in electrochemical recovery of rare earth elements from NdFeB magnets [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
Recent advances in electrochemical methods promise a more sustainable recycling of rare earth elements (REEs) from discarded NdFeB permanent magnets. The demand for NdFeB magnets for clean energy applications is rapidly increasing, motivating recycling ...
Fu L., Karimi-Maleh H.
doaj   +1 more source

Gold Leaching from an Oxide Ore Using Thiocyanate as a Lixiviant: Process Optimization and Kinetics

ACS Omega, 2021
Atefeh Azizitorghabeh, Harshit Mahandra, Juliana Ramsay, Ahmad Ghahreman   +3 more
doaj   +1 more source

Envirobmentally safe method to process polyelemental fluorite ore

Мінеральні ресурси України
This study is devoted to processing of polyelemental fluorite ore of the Suschano-Perzhan zone of the Ukrainian Schield. The analysis of current trends in the involvement of rare earths metals in the processing of polyelemental ores.
T. A. Oliinyk
doaj   +1 more source

Effect of oxidizing agents on the treatment of a Colombian lead ore by alternative hydrometallurgical processes [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
The metallurgy of lead presents significant environmental and public health challenges due to its toxicity. This is why it has been necessary to develop hydrometallurgical processes as alternatives for obtaining metal with a more sustainable and ...
Borda J., Salamanca I.D., Torres R.
doaj   +1 more source

Geochemistry and Acid Hydrometallurgy Accessibility of Uraninite from Mianhuakeng Granite-Hosted Uranium Deposit, South China [PDF]

, 2020
Jian Wang, Zhanxue Sun, Guangrong Li, Yajie Liu, Zhongkui Zhou, Xuegang Wang, Zhihong Zheng, Yipeng Zhou, Kai Zhao, Ling Xiang, Jiaxin Wei   +10 more
openalex   +1 more source

Model based methodology development for energy recovery in ash heat exchange systems [PDF]

, 2010
Flash tank evaporation combined with a condensing heat exchanger can be used when heat exchange is required between two streams and where at least one of these streams is difficult to handle (in terms of solid particles content, viscosity, pH ...
Korobeinikov, A., McCarthy, J., Melnik, A., Mooney, E., Rojas, J., Semkov, K., Varghese, J., Zhelev, T.   +7 more
core  

Molecular mechanisms induced by phase modifiers used in hydrometallurgy: consequences on transfer efficiency and process safety [PDF]

, 2022
Asmae El Maangar, Sylvain Prévost, Sandrine Dourdain, Thomas Zemb   +3 more
openalex   +1 more source