Results 11 to 20 of about 5,009 (173)

Hydrometallurgy

open access: yes, 2014
A novel process for leaching chromite ore has been proposed. Compared to the traditional alkaline roasting process, the new hydrometallurgical process lowers effectively the reaction temperature and enhances the leaching efficiency through pressure ...
Zhang, Yang   +4 more
core   +8 more sources

A Changing Environment: Reflections on 50 Years of Hydrometallurgy [PDF]

open access: yes, 2014
Looking back over the past half century, it can be seen that the growth in the importance of hydrometallurgy for the production of non-ferrous and precious metals almost exactly parallels the rise of the environmental movement and its principal NGOs ...
Monhemius, AJ
core   +5 more sources

Hydrometallurgy

open access: yes, 2005
The dissolution behavior of Nb2O5, Ta2O5 and their mixture in highly concentrated KOH solution (> 50% wt.) has been investigated. A 4(3) orthogonal design was used to study the effects of four leaching parameters, reaction temperature, KOHNb2O5, mole ...
Yi, DQ, Zhou, HM, Zhang, Y, Zheng, SL
core   +5 more sources

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

Leaching of Metals from Spent Lithium-Ion Batteries

open access: yesRecycling, 2017
The recycling of valuable metals from spent lithium-ion batteries (LIBs) is becoming increasingly important due to the depletion of natural resources and potential pollution from the spent batteries.
Miamari Aaltonen   +3 more
doaj   +1 more source

Recovery of sodium from alumina-extracted fly ash using concentrated sodium carbonate solution [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2018
A novel method for the recovery of sodium from alumina-extracted fly ash (AEFA) using concentrated Na2CO3 solution is presented. Sodium was efficiently extracted from AEFA, which was mainly composed of NaCaHSiO4.
Wang Z.   +4 more
doaj   +1 more source

Bioleaching of Chalcopyrite-bornite and Chalcopyrite-pyrite Mixed Ores in The Presence of Moderately Thermophilic Microorganisms

open access: yesInternational Journal of Electrochemical Science, 2017
In this work, bioleaching of chalcopyrite-pyrite and chalcopyrite-bornite mixed ores in the presence of moderately thermophilic microorganisms (A.caldus, L.ferriphilum and mixed culture) were carried out.
Yulin Huang   +9 more
doaj   +1 more source

Advances in Mineral Processing and Hydrometallurgy

open access: yesMetals, 2021
A Special Issue of Metals was commissioned that was devoted to aspects of Mineral Processing and Hydrometallurgy [...]
Corby G. Anderson, Hao Cui
doaj   +1 more source

Lithium perrhenate catalyst for carbon aerogel-based supercapacitor

open access: yesSN Applied Sciences, 2020
Carbon aerogels are unique type of amorphous carbon-based materials with an extraordinary properties including light weight, well-developed and tailored pore structure, high specific surface area, low electrical resistivity and high purity.
Mateusz Ciszewski   +5 more
doaj   +1 more source

Sensing Organophosphorus Compounds with SWCNT Films

open access: yesSensors, 2021
Promising electrical properties of single-walled carbon nanotubes (SWCNTs) open a spectrum of applications for this material. As the SWCNT electronic characteristics respond well to the presence of various analytes, this makes them highly sensitive ...
Mika Sahlman   +2 more
doaj   +1 more source

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