Results 71 to 80 of about 2,651,934 (255)

Study on thermodynamic model of arsenic removal from oxidative acid leaching

Journal of Materials Research and Technology, 2020
In this paper, we propose a new strategy to remove arsenic from arsenic-containing waste residues by oxidation-acid leaching. The experimental results show the example is effective for different types of arsenic-containing waste residues.
Yang Wang, Xiong Fang, Pin Deng, Zhihao Rong, Xincun Tang, Shan Cao   +5 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Calcification Roasting-Microwave Acid Leaching of Vanadium from Vanadium-Bearing Steel Slag

Crystals
Enhanced vanadium recovery from vanadium-bearing steel slag is essential in the sustainable use of metallurgical solid waste. This study uses microwave-assisted acid leaching on roasted clinker and systematically investigates it to enhance vanadium ...
Le Wang, Minhao Zhang, Xueying Shao, Jinglong Liang   +3 more
doaj   +1 more source

Column Leaching Tests to Valorize a Solid Waste from the Decommissioning of Coal-Fired Power Plants

Energies, 2019
Solid waste from the decommissioning of coal-fired power plants collected from a power plant in Spain (Puertollano, Ciudad Real) was subjected to acid leaching tests in columns to evaluate the leachability of several valuable and toxic metals (Al, Ca, Fe,
Ernesto Rivas, María Ángeles Martín-Lara, Gabriel Blázquez, Antonio Pérez, Mónica Calero   +4 more
doaj   +1 more source

Application of alternative lixiviants for secondary heap leaching of gold [PDF]

, 2000
Some preliminary results on the secondary leaching of previously heap leached gold ore are presented. Alternative lixiviants for gold comprising chlorine, thiourea and thiosulphate were compared with cyanide using bottle roll tests.
Nikoloski, A., Stockton, B.
core  

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Study on alkali liquor roasting and sulphuric acid leaching of bayan obo rare earth concentrate

Metalurgija, 2018
Take the roasted ore after the alkali liquor roasting and decomposition of Bayan Obo rare earth concentrate as the raw material, and use the sulphuric acid leaching to extract the elements including rare earth, thorium, tetravalent cerium, etc.
W. L. Guo, Y. H. Xu, D. Q. Cang, S. F. Ma, H. Tian, Z. J. Meng, X. X. Zhang   +6 more
doaj  

Roasting Extraction of Lithium from Fly Ash: A Study of Influential Parameters and Mechanisms

Applied Sciences
Fly ash consists of significant amounts of lithium, which is an essential resource for developing batteries. This study proposed an efficient method for extracting lithium from fly ash. First, we explored the parameters affecting the activation effect of
Fayue Li, Jingfeng Liu, Longjiao Lv, Xiwei Mu, Yuting Ren, Guocheng Zhu   +5 more
doaj   +1 more source

Polyphenol‐Inspired Materials for Agricultural Applications

Advanced Materials, EarlyView.
This review outlines the use of polyphenol‐inspired materials for sustainable agriculture, highlighting their molecular design, interfacial assembly, structure–property relationships, and prospects toward precision agriculture, climate resilience, ecosystem protection, and circular bioeconomy strategies.
Haofu Liu, Omid Mazaheri, Zhixing Lin, Tianzheng Wang, Jingqu Chen, Yuang Gu, Xia Liang, Deli Chen, Frank Caruso   +8 more
wiley   +1 more source

Nitrogen leaching from organic agriculture and conventional crop rotations (France) [PDF]

, 2013
A great challenge to science is to elucidate how agriculture can feed the increasing world population without damaging the environment, while preserving other resources such as freshwater.
Benoit, M., Garnier, J., Azougui, A., Billen, G., Mercier, B.   +4 more
core   +1 more source