Results 31 to 40 of about 3,664,205 (338)
LEACH-G: an Optimal Cluster-heads Selection Algorithm based on LEACH
Journal 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 +2 more sources
Electrochemical Selective Leaching and Deposition of Ag, Au and Pt from electronic waste
International 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
Journal of MMIJ, 2019 Leaching of copper anode slime using hydrochloric acid (HCl) and hydrogen peroxide (H2O2) is performed to recover Au. It is imperative to reduce the amount of the costly oxidizing agent, H2O2, used in this leaching.
Masao MIYAKE +3 more
doaj +1 more source
Selective precipitation of ammonium hexachloropalladate from leaching solutions of cemented palladium with zinc [PDF]
Journal 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
Selective Copper Recovery by Acid Leaching from Printed Circuit Board Waste Sludge
Metals, 2020 The most challenging issue associated with recycling the sludge generated from printed circuit boards (PCBs) is the separation of copper (Cu) from iron (Fe), using multi-stage leaching, or adding oxidizing and precipitating agents. Herein we investigated
Ha Bich Trinh +2 more
doaj +1 more source
, 2021 The sequential separation of base and precious metals from the end-of-life mobile phone printed circuit boards (PCBs) is a significant challenge for the development of recycling process that exhibit material circularity.
Mudila Dhanunjaya Rao +3 more
semanticscholar +1 more source
Investigation of the use of ammonium acetate as an alternative lixiviant in the leaching of malachite ore [PDF]
Chemical 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
, 2021 A novel method of pellet calcification roasting-H2SO4 leaching was proposed to efficiently separate and extract vanadium (V) from vanadium-titanium (V-Ti) magnetite concentrates.
Yi-Dong Luo +4 more
semanticscholar +1 more source
Global NEST. International Journal, 2021 In this research, the selective leaching of copper from waste printed circuit boards (PCBs) using glycine as a complexing agent was investigated. PCBs were pulverized and sieved, which allowed obtaining a PCBs powder of particle size fraction ≤ 1mm.
H. Mokhlis +2 more
semanticscholar +1 more source
Nitrogen leaching in small agricultural catchments [PDF]
, 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