Takashi Yoshida
The leaching mechanism of zinc oxide is essential for understanding the zinc smelting process and developing new zinc recycling methods. This study aimed to investigate the leaching of zinc oxide from electric arc furnace dust (EAF dust) using hydrochloric acid and sulfuric acid solutions. Kinetic leaching tests were conducted with variations in pH, temperature, leaching time, and the rotating speed of the zinc oxide disk specimen. The results demonstrated that the activation energy for leaching reactions was 17.5 kJ/mol for sulfuric acid and 11.6 kJ/mol for hydrochloric acid. Additionally, the leaching rate was found to increase with lower pH values and at higher temperatures, while it also followed a square root relationship with the rotating speed of the disk. These findings indicate that mass transport through the liquid boundary layer is the controlling factor for the leaching reaction of zinc oxide in acidic solutions. This research contributes to the improvement of hydro-metallurgical zinc recycling processes, addressing the increasing importance of zinc recovery in modern industries.
@article{9b825647-a0a3-4521-9f4c-9442de4b8123,
title={2003 Takashi Yoshida Leaching of Zinc Oxide in Acidic Solution matertrans.44.2489},
author={Takashi Yoshida},
year={2026},
language={en}
}TY - JOUR TI - 2003 Takashi Yoshida Leaching of Zinc Oxide in Acidic Solution matertrans.44.2489 AU - Takashi Yoshida PY - 2026 LA - en ER -
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ROPAFADZO JAMAKANGA
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