C. Lupi, M. Pasquali
High-purity nickel is predominantly produced through electrowinning from sulphate and chloride solutions, necessitating high concentrations of boric acid as a buffer. This study investigates the operational conditions for nickel electrowinning from both acidic and alkaline electrolytes, with a focus on varying nickel concentrations and pH levels. The pH range for efficient nickel deposition from higher concentrations (over 10 g/L) is identified as 3 to 4, while lower concentrations require a pH between 10 and 11 to mitigate hydrogen evolution. Factors such as additive presence, temperature, cathode material, current density, and voltage are thoroughly analyzed to optimize energy consumption while producing pure nickel with desirable morphology. The findings elucidate the critical parameters influencing nickel recovery in electrowinning processes and provide insights for improved operational efficiency in industrial applications.
@article{940fdb56-90c1-40f4-9d20-980df3634e87,
title={Studies concerning nickel electrowinning},
author={C. Lupi and M. Pasquali},
year={2026},
language={en}
}TY - JOUR TI - Studies concerning nickel electrowinning AU - C. Lupi AU - M. Pasquali PY - 2026 LA - en ER -
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