Results 11 to 20 of about 5,546,465 (345)

Hydrometallurgy leaching of manganese from electrolytic manganese anode slime using hydrogen peroxide as reducing agent

open access: yes工程科学学报, 2023
Manganese is one of the important strategic resources in China, and there is a saying that “no manganese, no steel”. In 2020, China’s output of electrolytic metal manganese was 1501300 tons, accounting for 96.5% of the global output.
Jun-jie ZHAO   +5 more
doaj   +1 more source

An environmentally friendly hydrometallurgy process for the recovery and reuse of metals from spent lithium-ion batteries, using organic acid

open access: yesOpen Engineering, 2022
The increasing use of lithium-ion batteries (LIBs) presents a serious environmental problem. These spent LIBs are suitable sources of metals for the production of LIB cathode active material. This study successfully recovered nickel, cobalt, and aluminum
Jumari Arif   +5 more
doaj   +1 more source

Effects of Ammonium Salts on Rare Earth Leaching Process of Weathered Crust Elution-Deposited Rare Earth Ores

open access: yesMetals, 2023
In order to reveal the influence of ammonium salts on the rare earth leaching process of weathered crust elution-deposited rare earth ores, ammonium acetate, ammonium chloride, and ammonium sulfate were used as leaching agents.
Zhenyue Zhang   +5 more
doaj   +1 more source

Enhancement of Leaching Copper from Printed Circuit Boards of Discarded Mobile Phones Using Ultrasound–Ozone Integrated Approach

open access: yesMetals, 2023
The recovery of metals from discarded mobile phones has been of interest due to its environmental and economic benefits. This work presents a simple and effective approach for leaching copper (Cu) from the printed circuit boards of discarded mobile ...
Nguyen Thi Hong Hoa   +8 more
doaj   +1 more source

Comparative Study for Selective Lithium Recovery via Chemical Transformations during Incineration and Dynamic Pyrolysis of EV Li-Ion Batteries

open access: yesMetals, 2021
Selective leaching of Li from spent LIBs thermally pretreated by pyrolysis and incineration between 400 and 700 °C for 30, 60, and 90 min followed by water leaching at high temperature and high L/S ratio was examined.
Srija Balachandran   +5 more
doaj   +1 more source

Oxidation leaching of chromium from electroplating sludge: Ultrasonic enhancement and its mechanism

open access: yesFrontiers in Chemistry, 2022
The oxidation leaching of chromium from electroplating sludge was investigated, and ultrasonication was introduced for the enhancement of the leaching process.
Kaihua Huang   +7 more
doaj   +1 more source

Leaching of vanadium, potassium, and iron from spent catalyst of the manufacture of sulfuric acid

open access: yesJournal of Materials Research and Technology, 2021
The sulfuric acid industry produces large volumes of spent catalyst containing vanadium. To develop an efficient method for vanadium recovery, hydrogen peroxide was used to oxidize sulfur in the spent catalyst, forming sulfuric acid, which, in turn ...
Liushun Wu   +4 more
doaj   +1 more source

EE-LEACH: development of energy-efficient LEACH Protocol for data gathering in WSN [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2015
A wireless sensor network (WSN) consists of a huge number of sensor nodes that are inadequate in energy, storage and processing power. One of the major tasks of the sensor nodes is the collection of data and forwarding the gathered data to the base station (BS).
Gopi Arumugam, Thirumurugan Ponnuchamy
openaire   +1 more source

Effect of surfactant addition on leaching process of weathered crust elution-deposited rare earth ores with magnesium sulfate

open access: yesInternational Journal of Mining Science and Technology, 2023
Surfactants were proposed to be added into magnesium sulfate solution to improve the leaching process of weathered crust elution-deposited rare earth ores (WREOs).
Fang Zhou   +4 more
doaj   +1 more source

Research on optimisation of energy efficient routing protocol based on LEACH [PDF]

open access: yesInternational Journal of Ad Hoc and Ubiquitous Computing, 2021
Abstract Aiming at the shortcomings of a typical Low Energy Adaptive Clustering Hierarchy (LEACH) routing protocol, which randomly selects cluster heads (CHs) and sends data to the base station (BS) by single-hop, an improved effcient routing protocol, Leach-sub-muti, is proposed. In the process of electing CH, the protocol considers the energy
Haibin Sun, Dijing Pan
openaire   +1 more source

Home - About - Disclaimer - Privacy