Evaporation Kinetics of Zinc in Crude Zinc by Vacuum Distillation

Zhao Weichen; Xiong Heng; Xu Baoqiang; Yang Hongwei

doi:10.3969/j.issn.1000-6532.2022.06.030

2022 No. 6

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Article navigation > Multipurpose Utilization of Mineral Resources > 2022 > 43(6): 179-183

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Zhao Weichen, Xiong Heng, Xu Baoqiang, Yang Hongwei. Evaporation Kinetics of Zinc in Crude Zinc by Vacuum Distillation[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(6): 179-183. doi: 10.3969/j.issn.1000-6532.2022.06.030

Citation:

Zhao Weichen, Xiong Heng, Xu Baoqiang, Yang Hongwei. Evaporation Kinetics of Zinc in Crude Zinc by Vacuum Distillation[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(6): 179-183. doi: 10.3969/j.issn.1000-6532.2022.06.030

Evaporation Kinetics of Zinc in Crude Zinc by Vacuum Distillation

National Engineering Research Center of Vacuum Metallurgy, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China

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Corresponding author: Yang Hongwei, hongweiy@kust.edu.cn

Received Date: 14 December 2020

Publish Date: 25 December 2022

Abstract

Abstract

Based on the metal elements contained in crude zinc, the evaporation kinetic experiments of the Cd-Zn, Bi-Zn and Bi-Sn-Zn systems in vacuum distillation were carried out. The Langmuir formula was used for theoretical prediction of evaporation rate. The results are in good agreement with the experimental data. It indicates that the method of evaporation rate calculation is applicable. The condensation coefficients of zinc in the alloys were calculated. The relationship between the interaction and the evaporation rate of components in the alloys was discussed. It will be helpful to the separation and purification of crude zinc and the optimization of experimental equipmentby vacuum distillation.
- Crude zinc /
- Langmuir formula /
- Condensation coefficient /
- Evaporation rate constant

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References

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