Leaching behavior and process optimization of tin recovery from waste liquid crystal display under mechanical activation

Qin, Jianchun; Ning, Shunyan; Zeng, Jishu; He, Zheyu; Li, Yimin; Fujita, Toyohisa; Wei, Yuezhou

doi:10.1016/j.jclepro.2023.136640

Cited by 14 publications

(4 citation statements)

References 20 publications

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“…Simple leaching treatment for tin recycling from tinplate scraps showing a broad application prospect [20] . How to improve the leaching efficiency is one of the elementary problems in the hydrometallurgy industry.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-assisted extraction of Sn from tinplate scraps by alkaline leaching: Novel acoustoelectric synergy effect underlying intensifying mechanism

Liu,

Chu,

Huang

et al. 2023

Ultrasonics Sonochemistry

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Section: Introductionmentioning

confidence: 99%

Ultrasound-assisted extraction of Sn from tinplate scraps by alkaline leaching: Novel acoustoelectric synergy effect underlying intensifying mechanism

Liu,

Chu,

Huang

et al. 2023

Ultrasonics Sonochemistry

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“…The composite number of elements in the BBD test group was relatively lower and more cost effective compared to the central composite design. Moreover, it requires fewer consecutive trials [44][45][46][47].…”

Section: Optimal Experimental Designmentioning

confidence: 99%

Investigation of the Leaching Kinetics of Zinc from Smithsonite in Ammonium Citrate Solution

Chen,

Wu,

Wang

2024

Metals

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In this study, the response surface method is used to develop a model for analyzing and optimizing zinc leaching experiments. An investigation into the leaching kinetics of smithsonite in ammonium citrate solution is also conducted. A model of kinetics is studied in order to represent these effects. The experimental data show that an increase in the solution temperature, concentration, and stirring speed has a positive impact on the leaching rate, while an increase in the particle size has a negative impact on it. The optimal experimental conditions consist of a leaching temperature of 70 °C, ammonium citrate concentration of 5 mol/L, particle size of 38 µm, and rotational speed of 1000 rpm. Under these optimal conditions, the leaching rate of zinc from smithsonite is 83.51%. It is speculated that the kinetic model will change when the temperature is higher than 60 °C. When the temperature is lower than 60 °C, the leaching process is under the control of the shrinking core model of the surface chemical reactions. The calculated activation energy of the leaching reaction is equal to 42 kJ/mol. The model of the leaching process can be described by the following equation: 1−1−x1/3=k0⋅(C)0.6181⋅r0−0.5868⋅SS0.6901exp⁡−42/RT]t. This demonstrates that an ammonium citrate solution can be used in the leaching process of zinc in smithsonite as an effective and clean leaching agent.

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“…However, due to its excellent plasticity and ductility, waste Pb-Sn alloy can not be normally ground into fine particles by ball milling. The large chunks of waste Pb-Sn alloy tends to sink at the bottom of the reaction vessel during the leaching process, which reduces its contact probability with the leachate and affects mass transfer [18] , [19] . Strong mechanical mixing will consume a huge amount of energy [20] .…”

Section: Introductionmentioning

confidence: 99%

Intensifying separation of Pb and Sn from waste Pb-Sn alloy by ultrasound-assisted acid leaching: Selective dissolution and sonochemistry mechanism

Liu,

Shi,

Huang

et al. 2024

Ultrasonics Sonochemistry

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Leaching behavior and process optimization of tin recovery from waste liquid crystal display under mechanical activation

Cited by 14 publications

References 20 publications

Ultrasound-assisted extraction of Sn from tinplate scraps by alkaline leaching: Novel acoustoelectric synergy effect underlying intensifying mechanism

Ultrasound-assisted extraction of Sn from tinplate scraps by alkaline leaching: Novel acoustoelectric synergy effect underlying intensifying mechanism

Investigation of the Leaching Kinetics of Zinc from Smithsonite in Ammonium Citrate Solution

Intensifying separation of Pb and Sn from waste Pb-Sn alloy by ultrasound-assisted acid leaching: Selective dissolution and sonochemistry mechanism

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