Results 21 to 30 of about 18,900 (300)

A Multifocal Study Investigation of Pyrolyzed Printed Circuit Board Leaching

open access: yesMetals, 2022
Electric waste from numerous devices that are put out of use every day has some form of printed circuit board that contains precious and valuable metals in their components.
Gvozden Jovanović   +7 more
doaj   +1 more source

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

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 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

LEACH-G: an Optimal Cluster-heads Selection Algorithm based on LEACH

open access: yesJournal of Software, 2013
A s a classic clustering algorithm , LEACH is widely used in wireless sensor networks. Due to the random cluster head selection process, LEACH does not guarantee optimization for the number and position of cluster heads . In order to further optimize LEACH, a n optimal energy-efficient cluster-heads selection algorithm LEACH-G for LEACH
Hongwei Chen   +3 more
openaire   +1 more source

Selective Leaching of Steelmaking Slag for Indirect CO2 Mineral Sequestration [PDF]

open access: yes, 2010
Indirect CO2 mineral sequestration, which could make CO2 fixate into precipitated calcium carbonate (PCC) of value-added products, is an important technology that is used to reduce greenhouse gas emissions economically.
Li, HQ   +3 more
core   +1 more source

Selective Copper Recovery with HCl Leaching from Copper Oxalate Material [PDF]

open access: yes, 2020
In this study, recovery of copper from solid material (obtained by leaching of chalcopyrite with oxalic acid in the presence of hydrogen peroxide) with a copper oxalate structure was carried out selectively using HCl.
Hasan Nizamoğlu   +9 more
core   +1 more source

Electrochemical Selective Leaching and Deposition of Ag, Au and Pt from electronic waste

open access: yesInternational Journal of Electrochemical Science, 2017
In this work, selective electrochemical leaching of compact anodes, made from electronic waste (e-waste) powder containing metals such as silver (Ag), gold (Au) and platinum (Pt), was studied in presence of copper (Cu), nickel (Ni), Tin (Sn) and zinc (Zn)
C. Cortés López   +5 more
doaj   +1 more source

Image3_Utilization of amino acid for selective leaching of critical metals from spent hydrodesulfurization catalyst.tif [PDF]

open access: yes, 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.
Sae Yamamoto (13931493)   +3 more
core   +1 more source

Image5_Utilization of amino acid for selective leaching of critical metals from spent hydrodesulfurization catalyst.tif [PDF]

open access: yes, 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.
Sae Yamamoto (13931493)   +3 more
core   +1 more source

NH4Cl selective leaching of basic oxygen furnace slag: Optimization study using response surface methodology [PDF]

open access: yes, 2016
The basic oxygen furnace slag (SL) was selectively leached by NH4Cl. Response surface methodology and the central composite design (CCD) were employed in determining the optimal condition.
Zhang, Lian, Sun, Yong, Zhang, Jing Ping
core   +1 more source

Home - About - Disclaimer - Privacy