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Industrial tests of composite porous Pb-Ag anode in zinc electrowinning plant
In this work, the frame structure composite porous Pb-Ag (0.8wt.%) anode with the size of 975 mm × 620 mm × 6 mm was fabricated by the semi-integral...
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Zinc and Lead Solvent Extraction and Electrowinning
Solvent extraction (SX)Solvent extraction of zinc (Zn)Zinc can be used to recover high-purity Zn from sulphide mineral leaching solutions, low-grade...
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A New Approach to Nickel Recycling from Zinc Plant Residue: A Morphological and Crystallographic Study on the Effects of Zinc Impurity on the Electrowinning of Nickel
Nickel-bearing zinc plant residues (cold filtercake, CFC) cause a serious threat to the environment. In this research, nickel deposits from an...
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Investigation of high current density on zinc electrodeposition and anodic corrosion in zinc electrowinning
In this work, the effects of high current density (500 A/m 2 , 600 A/m 2 , 700 A/m 2 , 800 A/m 2 ) on zinc electrodeposition as well as the anodic corrosion...
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Performance study of trace Ca elements modified Al-Mn-Ca alloy cathodes for zinc electrowinning
In this paper, the modified Al-Mn-xCa ( x = 0.02 wt.%, 0.04 wt.%, 0.06 wt.%) ternary alloy cathodes with trace Ca contents were prepared....
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The influence of rare earth La on properties of lead-based alloy anode for zinc electrowinning
The development of suitable lead alloys anodes is an important target in zinc electrowinning. Here, we prepared Pb-Ag-Ca-Al-La alloys using the...
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Development of a Dynamic Semi-empirical Model for Simulation of Copper Electrowinning Processes
Dynamic process models present an opportunity to investigate optimization and control strategies for the energy-intensive copper electrowinning...
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Molten Salt Electrowinning of Metals and Materials: Opportunities and Challenges
Conventional metallurgical processes to produce metals involve carbothermal reduction of their compounds and suffer from massive carbon emissions....
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Pulse electrodeposition of Ti/Sn-SbOX/β-PbO2 anodes with high oxygen evolution activity in zinc electrowinning
To obtain PbO 2 anodes with high oxygen evolution activity and long lifetimes in zinc electrowinning, Ti/Sn-SbO X /β-PbO 2 composite electrodes were...
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Smoothing Enhancement of Sodium 4-Hydroxyphenylsulfonate on Cathode Copper from Simulated Leachate of Copper–Cadmium Slag by Cyclone Electrowinning
In this paper, the valuable metal copper was recovered from the leaching solution of copper–cadmium slag by cyclone electrowinning technology. During...
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Optimization of Nickel Electrowinning from Simulated Watts Bath of Electronics Industrial Waste
Plating process now has been widely used in the electronics industries for corrosion resistance purpose. One of favorable solution used in...
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Application of Carbon-Based Oxygen Evolution Reaction Electrocatalyst in Zinc Electrowinning System
Electrode polarization potential is an important factor of cell voltage during electrowinning, which can affect the total energy consumption of the...
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Investigation of Cadmium and Cobalt Behavior Mechanism During Purification of a Synthetic Zinc Sulfate Electrolyte Enhanced by Ultrasound
Due to the presence of impurity ions, the current efficiency of zinc electrowinning is reduced, and the quality of zinc products is affected....
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Impurity Purification Before Electrowinning
This chapter covers the impurity removalImpurity removal techniques before electrowinningElectrowinning. Alkaline hydraulic NaOHNaOH precipitation,...
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Parametric study on the electrochemical performance and stability of PbO2-coated titanium electrodes for electrowinning applications
In recent years, lead dioxide coatings have received extensive attention as promising anode material for electrochemical processes. In the present...
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Electrowinning of Nickel and Cobalt from Non-circulated Sulfate Electrolyte
AbstractA laboratory investigation on nickel and cobalt electrowinning procedure from dilute synthetic sulfate-based electrolytes (with...
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Electrochemical Reduction of Iron Oxides in Aqueous NaOH Electrolyte Including Iron Residue from Nickel and Zinc Electrowinning Processes
Experiments were carried out in NaOH-H2O (50–50 wt%) electrolyte with a suspension of Fe2O3 particles at ~100 ℃. A rotating disk electrode of...
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Removal of chlorine from zinc sulfate solution: a review
During zinc hydrometallurgy process, the chloride ions in the materials go into the leaching solution, which have abominable effects on equipment,...
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The relative efficiency of electrowinning indium from chloride electrolytes
The main characteristics of electrolytic reduction applied to indium recovery from aqueous chloride solutions were considered theoretically and...
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Hydrometallurgical Recovery of Zinc from By-Products and Waste Materials of Hot-Dip Galvanizing Process
Like other industrial processes, hot-dip galvanizing of steel generates some by-products and wastes. Secondary materials contain a relatively high...