Results 31 to 40 of about 1,164,984 (151)

Selective precipitation of ammonium hexachloropalladate from leaching solutions of cemented palladium with zinc [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2022
Palladium (Pd) present in spent electroplating solutions is concentrated by cementation with zinc (Zn) metal powder. Therefore, it is necessary to recover Pd from the cemented Pd.
Nguyen V.N.H., Song S.J., Lee M.S.
doaj   +1 more source

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

open access: yesChemical 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   +2 more
doaj   +1 more source

On the progression of leaching from large particles in heaps [PDF]

open access: yes, 2012
Includes bibliographical references.Although heap leaching is by now a well-established technology choice in the mining industry, the process remains limited by low recoveries and long extraction times.
Ghorbani, Yousef
core   +1 more source

Phosphorus leaching as influenced by animal manure and catch crops [PDF]

open access: yes, 2013
Leaching of phosphorus (P) constitutes an important part of P losses from Swedish agricultural soils. Phosphorus leaching is complex and is influenced by many factors, from source and mobilisation to transport pathways, as well as agricultural management
Liu, Jian
core   +1 more source

Catch crop strategy and nitrate leaching following grazed grass-clover [PDF]

open access: yes, 2007
Cultivation of grassland presents a high risk of nitrate leaching. This study aimed to determine if leaching could be reduced by growing spring barley (Hordeum vulgare L.) as a green crop for silage with undersown Italian ryegrass (Lolium multiflorum Lam.)
F. P. Vinther   +5 more
core   +2 more sources

Nitrogen leaching in small agricultural catchments [PDF]

open access: yes, 2004
Nitrogen (N) leaching from arable land to the aquatic environment is considered a serious problem. Small agricultural monitoring catchments in Sweden were used for the application and testing of model-based methods for quantification of N leaching from ...
Kyllmar, Katarina
core   +1 more source

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

open access: yesMetals, 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

Extraction of metals from saprolitic laterite ore through pressure hydrochloric-acid selective leaching

open access: yes, 2015
In this study, pressure hydrochloric-add selective leaching was used to leach Ni and Co from saprolitic laterite ore on the basis of potential-pH diagrams constructed for Fe-Si-Cl-H2O and Ni-Si-Cl-H2O systems. The leaching of Ni, Co, Mg, Mn, and Fe was
Han, Linxin   +6 more
core   +1 more source

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

open access: yesJournal 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.   +4 more
doaj   +1 more source

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

open access: yesEngineering
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   +8 more
doaj   +1 more source

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