Results 11 to 20 of about 3,664,205 (338)

Comparative Study of Manufacturing NdFeB Magnet Wastes Recycling: Oxidative Roasting-Selective Leaching and Whole Leaching Routes

open access: yesRecycling, 2022
This research investigated recycling of manufacturing NdFeB magnet wastes in as-sintered and powder forms which contained high carbon via pyro-hydro metallurgy process.
Tapany Patcharawit   +3 more
doaj   +3 more sources

Water as a Sustainable Leaching Agent for the Selective Leaching of Lithium from Spent Lithium-Ion Batteries [PDF]

open access: yesACS Omega
The development of a sustainable recycling process for lithium from spent lithium-ion batteries is an essential step to reduce the environmental impact of batteries. So far, the industrial implementation of a recycling process for lithium has been hindered by low recycling efficiencies and impurities in the recycled material.
Rafaela Greil   +4 more
semanticscholar   +5 more sources

Enrichment of low-grade phosphorites by the selective leaching method

open access: yesGreen Processing and Synthesis, 2023
The selective leaching method presents a new and innovative approach for the enrichment of low-grade phosphate raw materials. The use of acetic acid as a reagent in the leaching process allows for the selective dissolution of carbonates, potassium-, and ...
Raiymbekov Yerkebulan   +2 more
doaj   +2 more sources

Recycling of NdFeB magnets employing oxidation, selective leaching, and iron precipitation in an autoclave [PDF]

open access: yesRSC Adv, 2023
The increasing production of neodymium–iron–boron (NdFeB) magnets for technological applications results in disposal problems. NdFeB magnets contain a significant quantity of rare earth elements (REEs).
Elif Emil-Kaya   +4 more
semanticscholar   +2 more sources

Utilization of amino acid for selective leaching of critical metals from spent hydrodesulfurization catalyst [PDF]

open access: yesFrontiers in Chemistry, 2022
While spent catalysts can cause serious environmental pollution, they can be considered an essential secondary metal source due to their high critical metal grades.
Idol Phann   +3 more
doaj   +2 more sources

Recovery of Tantalum and Manganese from Epoxy-Coated Solid Electrolyte Tantalum Capacitors through Selective Leaching and Chlorination Processes [PDF]

open access: yesMaterials (Basel), 2022
Electronic products are ever growing in popularity, and tantalum capacitors are heavily used in small electronic products. Spent epoxy-coated solid electrolyte tantalum capacitors, containing about 22 wt.% of tantalum and 8 wt.% of manganese, were ...
Wei-Sheng Chen   +2 more
semanticscholar   +2 more sources

Efficient and selective leaching of nickel and cobalt from nickel laterite ore by a combined atmospheric acid leaching-ferric chloride solution leaching process: optimization and mechanism [PDF]

open access: yesRSC Adv
Low-selectivity leaching of nickel and/or cobalt is a major problem for atmospheric acid leaching processes, while harsh leaching conditions make the pressurised acid leaching process costly.
Jingbei Li   +4 more
semanticscholar   +2 more sources

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

open access: yesBatteries
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   +2 more
doaj   +2 more sources

Techniques in detect selective leaching in metal components

open access: yesBrazilian Journal of Radiation Sciences
Selective leaching is a corrosion type in, in which certain element in an alloy is preferentially removed from a material, leaving behind a porous or weakened material that can affect its quality and structural integrity.
Maritza Rodríguez Gual   +2 more
doaj   +2 more sources

Selective leaching of metals from mechanically activated sulphides [PDF]

open access: yesActa Montanistica Slovaca, 1998
The selectivity of leaching of sphalerite, tetrahedrite, arsenopyrite, bornite and chalcopyrite was studied. We can affect selective leaching in additon to suitable mechanochemical pretreatment of solid phase also by the choice of suitable leaching agent
Achimovičová Marcela
doaj   +2 more sources

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