Results 21 to 30 of about 706 (213)

Selective Copper Recovery by Acid Leaching from Printed Circuit Board Waste Sludge

Metals, 2020
The most challenging issue associated with recycling the sludge generated from printed circuit boards (PCBs) is the separation of copper (Cu) from iron (Fe), using multi-stage leaching, or adding oxidizing and precipitating agents. Herein we investigated
Ha Bich Trinh, Seunghyun Kim, Jaeryeong Lee   +2 more
doaj   +1 more source

Investigation of the use of ammonium acetate as an alternative lixiviant in the leaching of malachite ore [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2013
The solutions containing ammonia allow for selective leaching of the copper from a copper ore. In this study, the leaching and kinetics of malachite ore were examined using ammonium acetate solutions as an alternative lixiviant.
Künkül Asım, Gülezgin Abdulvahap, Demirkiran Nizamettin   +2 more
doaj   +1 more source

Selective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solution [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2019
The selective leaching of Mo from an off-grade gravity lead concentrate was investigated in Na2CO3 solution using air as an oxidant. The leaching behaviors of Mo and Pb were predicted by the thermodynamic phase diagrams of Pb-Mo-C-H2O system.
Liu Z.-X., Luo Y.-T., Luo W.-B., Li B.-X., Wu X.-W.   +4 more
doaj   +1 more source

Selective Lithium Leaching from Spent Lithium Iron Phosphate Batteries: Mechanisms, Technologies, and Future Perspectives

Engineering
With the rapid deployment of lithium iron phosphate (LFP) batteries and their finite service life, the annual accumulation of end-of-life LFP batteries has risen substantially.
Tianyu Zhao, Zhongwei Zhao, Jingxiu Wang, Yeonuk Choi, Weilun Li, Zhifei Zhang, Ailiang Chen, Wenhua Xu, Dongfu Liu   +8 more
doaj   +1 more source

Direct Phosphoric Acid Leaching of Bauxite Residue for Selective Scandium Extraction

Metals, 2022
Bauxite residue, the high alkaline and fine-grained byproduct of Bayer process for alumina’s production, is a material rich in numerous minerals and elements of high value and techno-economical interest in high tech applications such as rare earths ...
Lamprini-Areti Tsakanika, George Panagiotatos, Theopisti Lymperopoulou, Elias Chatzitheodoridis, Klaus Ochsenkühn, Maria Ochsenkühn-Petropoulou   +5 more
doaj   +1 more source

Advances in Selective Flotation and Leaching Process in Metallurgy [PDF]

Metals, 2022
Metals are a finite resource that are necessary to maintain living standards in modern society, due to their countless applications, such as transportation vehicles, building and construction, household appliances, electronic devices, etc. [...]
openaire   +2 more sources

Inorganic-organic hybrids originating from organosilane anchored onto leached vermiculite [PDF]

Materials Research, 2013
The reactivity of clay minerals leached in grafting reactions was investigated. Precursor solids were prepared by treating the sodium vermiculites with nitric acid solutions at several concentrations.
Ana P. M. Alves, Maria G. Fonseca, Albaneide Fernandes Wanderley   +2 more
doaj   +3 more sources

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Selective Leaching for the Recycling of Lithium, Iron, and Phosphorous from Lithium-Ion Battery Cathodes’ Production Scraps

Batteries
The market for lithium iron phosphate (LFP) batteries is projected to grow in the near future. However, recycling methods targeting LFP batteries, especially production scraps, are still underdeveloped.
Martina Bruno, Carlotta Francia, Silvia Fiore   +2 more
doaj   +1 more source