Results 21 to 30 of about 1,164,984 (151)

Process Optimization of High-Efficiency Leaching of Cadmium from Lead Smelting Smoke Based on RSM

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of metallurgical engineering. This work aims to investigate and optimize the effects of the leaching parameters on the selective leaching of cadmium from bottom blowing melting furnace dust.
Yaoshan Li   +5 more
doaj   +1 more source

Features of choosing the schemes for selective mining of ores and justifying their rational parameters while using heap leaching schemes for processing [PDF]

open access: yesE3S Web of Conferences, 2020
The article presents data from theoretical and experimental studies related to the search for a solution to an urgent geotechnological problem - selective mining of standard quality ore, substandard and diluted ores, taking into account the peculiarities
Sekisov Gennady   +2 more
doaj   +1 more source

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

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   +1 more source

Studies of Selective Recovery of Zinc and Manganese from Alkaline Batteries Scrap by Leaching and Precipitation

open access: yes, 2022
Recovery of zinc and manganese from scrapped alkaline batteries were carried out in the following way: leaching in H(2)SO(4) and selective precipitation of zinc and manganese by alkalization/neutralization.
Noga, Piotr   +9 more
core   +1 more source

A clean and efficient method for purifying crude selenium based on a selective leaching - directed decomposition purification process

open access: yesMaterials Research Express, 2022
The rare element selenium is a key material in supporting the development of high-tech and new products. This research has led to the development of a method of purifying crude selenium based on a selective leaching-directed decomposition purification ...
Na Xu   +6 more
doaj   +1 more source

SELECTIVE ELECTROEXTRACTION OF BASE METALS FROM LEACHING SOLUTIONS OBTAINED DURING THE RECYCLING OF WASTE PRINTED CIRCUIT BOARDS. I. INTENSIVE GALVANOSTATIC ELECTRODEPOSITION OF COPPER

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2020
This article presents our results concerning the feasibility of selective electroextraction of copper from leaching solutions obtained during base metals recycling from waste printed circuit boards.
Marian-Iosif FRÎNCU   +3 more
doaj   +1 more source

A comparison among bio-derived acids as selective eco-friendly leaching agents for cobalt: the case study of hard metals waste enhancement [PDF]

open access: yes, 2023
Peculiar chemical, mechanical and magnetic properties make cobalt a key metal for a variety of “hot” applications like cathode production of Li-ion batteries. Cobalt is also the preferred metallic binder for tungsten carbide tools manufacturing.
Amadou, Oumarou Amadou   +11 more
core   +2 more sources

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

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   +2 more sources

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

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