Mingfei HE, Yude GAO
The study investigated the leaching kinetics of indium from indium-bearing zinc oxide, focusing on various influencing factors. The objective was to analyze how temperature, sulfuric acidity, particle size, and stirring rate affect the dissolution rate of indium. The methodology involved comprehensive experiments varying these parameters to determine their impact on leaching behavior. Results demonstrated that the leaching process was predominantly controlled by chemical reaction at low sulfuric acid concentrations, with a reaction order of 1.194. As the acidity reached 1.8 mol/L, the process shifted to an internal diffusion-controlled model, characterized by a lower reaction order of 0.156. Additionally, the leaching reaction exhibited an activation energy of 10.97 kJ/mol under high acidity conditions. Notably, the leaching rate constant was inversely related to the square of particle size, indicating that smaller particles enhanced the leaching process. The leaching efficiency was improved through increased temperature and acid concentration. A new kinetics equation was proposed based on these findings. Thus, optimizing these parameters can significantly enhance the extraction of indium from zinc oxide.
@article{3a2f8050-4e13-47e9-a2fc-a12966c60c5b,
title={STUDY OF LEACHING KINETICS OF EXTRACTED INDIUM FROM ZINC OXIDE},
author={Mingfei HE and Yude GAO},
year={2024},
language={en}
}TY - JOUR TI - STUDY OF LEACHING KINETICS OF EXTRACTED INDIUM FROM ZINC OXIDE AU - Mingfei HE AU - Yude GAO PY - 2024 LA - en ER -
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