Results 1 to 10 of about 540,025 (266)

Effect of Thallium (I) Ions on the Zinc Electrowinning Process [PDF]

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2023
The effects of thallium(Ⅰ) ions on the surface morphology, cathode current efficiency, cathode potential, polarization behavior, and electrochemical impedance spectroscopy of zinc electrowinning were studied by scanning electron microscopy and ...
Ning YUAN   +6 more
doaj   +5 more sources

Influence of Bi3+ Doping on Electrochemical Properties of Ti/Sb-SnO2/PbO2 Electrode for Zinc Electrowinning [PDF]

open access: yesMolecules
Bi3+ doped Ti/Sb-SnO2/PbO2 electrode materials were fabricated by electrodeposition to improve their electrochemical performance in zinc electrowinning.
Jia Wu   +8 more
doaj   +3 more sources

Boosting effect of ultrasonication on the oxygen evolution reaction during zinc electrowinning [PDF]

open access: yesUltrasonics Sonochemistry
In this study, the electrochemical and anodic behaviors of Pb-Ag anodes during ultrasound-assisted zinc electrowinning were meticulously examined. The oxygen evolution reaction (OER) occurring at the Pb-Ag anodes in a 150 g L-1 aqueous H2SO4 solution was
Guihong Han   +6 more
doaj   +3 more sources

Electrochemical mechanisms and performance regulation of ultrasonic-assisted zinc electrowinning [PDF]

open access: yesUltrasonics Sonochemistry
Ultrasound-assisted zinc electrodeposition represents a promising strategy for process intensification, though its fundamental electrochemical mechanisms require deeper exploration.
Xiaowei Sheng   +11 more
doaj   +3 more sources

Two-step facile synthesis of Co3O4@C reinforced PbO2 coated electrode to promote efficient oxygen evolution reaction for zinc electrowinning. [PDF]

open access: yesRSC Adv, 2022
The conventional Pb–Ag alloy possesses a high oxygen evolution reaction overpotential, poor stability, and short service life in acidic solutions, making it an unsuitable sort of anode material for the zinc electrowinning process.
Jiang W   +6 more
europepmc   +2 more sources

An environmentally friendly and high current efficiency acid mist inhibitor for zinc electrowinning

open access: yesMaterials Research Express, 2023
Acid mist inhibitor is an effective additive for suppressing the generation of acid mist during electrowinning process. However, the traditional acid mist inhibitor has a low current efficiency, leading to high energy consumption.
Qi Ji   +6 more
doaj   +2 more sources

An integrated and sustainable process for selective separation of zinc from arsenic-bearing lead smelting residue by solvent extraction [PDF]

open access: yesScientific Reports
This study focuses on the development of a solvent–extraction–based purification route for the selective separation of zinc and arsenic from the acidic leach solution generated by a lead smelting furnace residue in a metallurgical facility in Zanjan ...
Mohammad Hossein Davoudi   +1 more
doaj   +2 more sources

Study on Electrochemical Performance of Dimensionally Stable Anodes during Zinc Electrowinning [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
In zinc electrowinning, small amounts of manganese ions additives are needed in the electrolyte to reduce the corrosion of anodes and minimize the contamination of cathodic zinc by dissolved lead.
Wei Zhang   +3 more
doaj   +2 more sources

Optimal Control for Zinc Electrowinning Process With Current Switching

open access: yesIEEE Access, 2017
This paper is concerned with the optimal control problem for the zinc electrowinning (EW) process during the current switching period. A mathematical model is developed to reveal the dynamic characteristics of the whole plant of the zinc EW process and ...
Chunhua Yang   +4 more
doaj   +3 more sources

Eliminating fluoride-induced corrosion of aluminum cathodes in zinc electrowinning by aluminum ion complexation

open access: yesJournal of Materials Research and Technology
This paper discusses the effect of fluoride on the corrosion behavior of aluminum alloy used as a mother blank in zinc electrowinning, focusing on the mitigation of the corrosive process by aluminum ion addition and fluoride complexation.
N.G.S. Almeida   +5 more
doaj   +2 more sources

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