Search
Search Results
-
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....
-
Effect of Additives and Cl− Ions on the Physical and Chemical Properties of Cobalt Deposits Obtained by Electrowinning
The optimization of the cobalt electrowinning process is crucial to enhance the quality of metallic deposits, as cobalt plays a fundamental role in...
-
Bench-Scale Electrowinning of Electrolytic Manganese Dioxide Using Ferruginous Mn Ores as Precursor
Bench-scale electrowinning of electrolytic manganese dioxide was carried out using the manganese sulfate electrolyte generated through SO 2 leaching...
-
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...
-
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...
-
Impurity Purification Before Electrowinning
This chapter covers the impurity removalImpurity removal techniques before electrowinningElectrowinning. Alkaline hydraulic NaOHNaOH precipitation,...
-
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...
-
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...
-
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...
-
Metal Recovery Processes
Electrowinning is the electrolytic process of “winning” or recovering dissolved metal using an applied potential.
-
Vale’s Long Harbour Refinery: World Class Producer of Low-Carbon Nickel and Cobalt
Vale Base Metals operates the Long Harbour Refinery using a novel hydrometallurgical process** to produce high-purity electrolytic nickel, cobalt,...
-
Energy-Saving Green Technologies in the Mining and Mineral Processing Industry
Pyrometallurgy and hydrometallurgyHydrometallurgy are the two main processes to recover valuable metals from ore and secondary resources. While...
-
Selective Sulfidation and Electrowinning of Nickel and Cobalt for Lithium Ion Battery Recycling
Processes for recyclingRecycling lithium ion batteries (LIB), in particular complex chemistries such as those containing nickel-manganese-cobalt...
-
Study on Preparation and Electrocatalytic Performance of Self-supported Carbon Transition Metal Catalysts
Ni/CP and FeO/CP oxygen evolutionOxygen evolution electrocatalysts were prepared by one-step electrodepositionElectrodeposition on carbon paper (CP)....
-
Nodule Formation on Copper Electrodeposits in the Rotating Cylinder Hull Cell
Nodulation formation during the electrolytic production of high-purity copper can lead to impurity entrapment and/or increased energy consumption....
-
Piloting the MesoTHERM Flow Sheet to Demonstrate the Feasibility of a Biooxidation Circuit for Treatment of a Complex Copper-Gold Concentrate
A continuous pilot plant campaign has been conducted over the 2021–2022 period to demonstrate the technical feasibility of Metso Outotec’s novel...
-
Resource Efficiency Evaluation of Pyrometallurgical Solutions to Minimize Iron-Rich Residues in the Roast-Leach-Electrowinning Process
The Roast-Leach-Electrowinning processElectrowinning process generates considerable quantities of iron-rich precipitates that must be landfilled,...
-
Thermodynamic Modeling of Iron-Copper-Sulfuric Acid Solutions During Solvent Extraction and Electrowinning for Copper Production
Solvent extraction and electrowinningElectrowinning (SX/EW) play an important role during the hydrometallurgical production of copperCopper for...
-
Preparation and performance of an Al/TiB2 + 10%Ti4O7/β-PbO2 as a composite anodic material for electrowinning of non-ferrous metals
Electrodes are the key material in the electrolysis of non-ferrous metals, and their selection and preparation can be a difficult problem in the...
-
Effective Copper Diffusion Coefficients in CuSO4–H2SO4 Electrowinning Electrolytes
Mass transport is an important factor in the deposit quality of copperCopper electrowinningElectrowinning . Presently, there is limited diffusivity...