Results 11 to 20 of about 20,439 (294)

Unconventional methods and innovation trends in hydrometallurgy [PDF]

open access: yesActa Montanistica Slovaca, 1997
A brief overview of innovation trends as well as non-traditional methods in hydrometallurgy are given in this contribution. A special attention is devoted to the elimination of elemental sulfur originated on a leached surface, leaching temperature ...
Havlík Tomáš
doaj   +2 more sources

Properties and perspective of using deep eutectic solvents for hydrometallurgy metal recovery

open access: hybridMinerals Engineering, 2023
María Isabel Martín   +2 more
openalex   +3 more sources

Adsorption of fluorine from lepidolite hydrometallurgy wastewater by aluminum modified zeolite [PDF]

open access: goldEnvironmental Geochemistry and Health
Huichun Gong   +5 more
openalex   +2 more sources

Environmentally friendly method for regeneration of copper chloride acidic solutions used in etching of printed circuits [PDF]

open access: yesE3S Web of Conferences, 2017
Etching of copper with acidic CuCl2 solution is a widely used chemical method in printed circuits production. During the process, the solution is enriched in Cu(I) ions, resulting in reduction and then loss of etching bath capacity.
Kopyto Dorota   +7 more
doaj   +1 more source

Toward Sustainable Lithium-Ion Batteries: Recycling and Reuse Strategies for Spent Graphite Anodes. [PDF]

open access: yesSmall
This review outlines the degradation mechanisms of spent graphite anodes in lithium‐ion batteries and highlights key recycling, regeneration, and modification strategies, spanning hydrometallurgical and pyrometallurgical methods. It also examines advances in surface engineering, structural tuning, and material hybridization, offering insights that ...
Mao Z, Chai J, Wang R.
europepmc   +2 more sources

An environmentally friendly method for efficient atmospheric oxidation of pyrrhotite in arsenopyrite/pyrite calcine

open access: yesChemical Engineering Journal Advances, 2021
Pyrite and arsenopyrite are the most common hosts for invisible gold, but pyrite and arsenic are refractory during conventional sulfide oxidation, which significantly challenges subsequent gold extraction.
Lin Li   +3 more
doaj   +1 more source

Assessment of environmental sustainability of nickel required for mobility transition

open access: yesFrontiers in Chemical Engineering, 2023
Nickel (Ni) in batteries (e.g., nickel-metal hydride battery (NiMH), lithium nickel cobalt aluminum oxide (NCA) and lithium nickel manganese cobalt oxide (NMC)) aim to ensure higher energy density and greater storage capacity.
Saeed Rahimpour Golroudbary   +3 more
doaj   +1 more source

The Twelve Principles of Circular Hydrometallurgy

open access: yesJournal of Sustainable Metallurgy, 2022
In this academic position paper, we propose the 12 Principles of a novel and more sustainable approach to hydrometallurgy that we call “circular hydrometallurgy.” The paper intends to set a basis for identifying future areas of research in the field of ...
K. Binnemans, P. Jones
semanticscholar   +1 more source

Sulfur enhancement effects for uranium bioleaching in column reactors from a refractory uranium ore

open access: yesFrontiers in Microbiology, 2023
The feasibility of sulfur enhancement for uranium bioleaching in column reactors was assessed with a designed mixed Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum ferriphilum from a refractory uranium ore.
Qian Li   +17 more
doaj   +1 more source

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