Results 71 to 80 of about 5,293 (211)

Techno-economic evaluation of an environmental-friendly processing route to extract rare earth elements from monazite

open access: yesCleaner Engineering and Technology
The relatively high concentration of thorium and uranium in monazite poses significant environmental issues in the extraction process of rare earth elements from monazite if left untreated.
Reiza Z. Mukhlis   +7 more
doaj   +1 more source

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

open access: yesSedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot   +8 more
wiley   +1 more source

Characteristics of Potential-pH Diagram of U-CO3(2-) -H2O System and Its Influencing Factors

open access: yesYuanzineng kexue jishu
Hydrogen reduction method has been widely studied and applied in the hydrometallurgy preparation of metal powders or oxides due to its simple operation, clean and environmental protection.
LI Dabing, NIU Yuqing, KANG Shaohui, ZHOU Zhiquan, YE Kaikai, SHEN Haonan, KANG Xiuming
doaj   +1 more source

Rare Earth Element Potential in the Araí Rift Metavolcanic, Central Brazil: Gamma‐Ray Signatures, Mineralogy and Exploration Implications

open access: yesTerra Nova, EarlyView.
ABSTRACT Although central Brazil hosts significant ion‐adsorption rare earth element (REE) deposits associated with A‐type granites, their coeval volcanic counterparts have been largely overlooked as exploration targets. This study demonstrates that acidic metavolcanic rocks of the Araí Group share strong radiometric, geochemical and mineralogical ...
Yuri Ribeiro   +3 more
wiley   +1 more source

Preparation and characterization of biochar-iron oxide-palygorskite composites for uranium(VI) removal from aqueous solutions

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry
This paper details the synthesis of palygorskite/biochar/iron oxide composites and their utilization for the remediation of water solutions contaminated with uranium(VI).
Ihor Pylypenko   +4 more
doaj   +1 more source

Assessing Distinctive Physiochemical Properties of Geopolymers, Their Green Development and Utilization in Wastewater Treatment

open access: yesWater and Environment Journal, EarlyView.
This review examines the physicochemical properties of geopolymers, focusing on the effects of calcium content, heavy metal impurities and acid activation. It distinguishes geopolymers from other alkali‐activated materials based on structure and synthesis precursors. Their use as water treatment adsorbents is compared with ceramic filters, highlighting
Kabelo L. Lebogang   +3 more
wiley   +1 more source

Dual conversion pathways for efficient electrochemical extraction of uranium

open access: yesNature Communications
The electrochemical extraction of uranium (EEU) from wastewater is of promise to ensure the sustainable development of nuclear power, of which the practical application is limited due to the single uranium species conversion pathway.
Lin Zhao   +6 more
doaj   +1 more source

Stable Uranium Oxide Under Atmospheric Conditions: An Electroplating Technique for U Film Fabrication at Boron-Doped Diamond Electrodes. [PDF]

open access: yesACS Mater Au, 2023
Peña-Duarte A   +5 more
europepmc   +1 more source

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