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Vol. 26 No. 18 (2014): Vol 26 Issue 18

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Thermodynamic Analysis and Experimental Study on Carbothermal Reduction of Zinc Dusts at Vacuum Condition

https://doi.org/10.14233/ajchem.2014.16864
H.Y. Sun
College of Science, Honghe University, Mengzi, P.R. China
X. Kong
College of Science, Honghe University, Mengzi, P.R. China
W. Sen
Yunnan Tin Company Limited, Gejiu, P.R. China
G.Y. Liu
College of Science, Honghe University, Mengzi, P.R. China
Z.Z. Yi
College of Science, Honghe University, Mengzi, P.R. China
R.M. Xiao
College of Science, Honghe University, Mengzi, P.R. China

Corresponding Author(s) : Z.Z. Yi

yizhongzhou@tsinghua.org.cn

Asian Journal of Chemistry, Vol. 26 No. 18 (2014): Vol 26 Issue 18

Abstract

The comprehensive recovery of zinc and lead by carbothermal reduction of zinc dusts in vacuum was investigated by XRD, SEM and DTA-TG. Thermodynamics analysis indicates that it can reduce the critical carbothermal reduction temperature of zinc oxides and lead oxides to zinc and lead in vacuum condition. Experimental results demonstrate that pure zinc and lead are obtained with molar ratio of (PbO + ZnO) to C ranging from 1:1 to 1:3 at 850-1000 °C distillation reduction for 40-100 min when the system pressure is 20 Pa.

Keywords

Zinc dusts Carbothermal reduction Vacuum Pyrometallurgy
Sun, H., Kong, X., Sen, W., Liu, G., Yi, Z., & Xiao, R. (2014). Thermodynamic Analysis and Experimental Study on Carbothermal Reduction of Zinc Dusts at Vacuum Condition. Asian Journal of Chemistry, 26(18), 6143–6146. https://doi.org/10.14233/ajchem.2014.16864
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References
  1. C.X. Guo and Y.C. Zhao, Enviromental Protection and Chemical Industry, 28, 1 (2008).
  2. W.L. Xu, M. Guo, J.M. Duan and X.L. Shi, Henan Metallurgy, 11, 3 (2003).
  3. W. Meng and C.L. Wang, Proceedings Of The Eighth China Conference Of Iron & Steel, 10 (2011).
  4. X.Z. Guo, B.H. Zhang, H.B. Yang and H. Yang, Mining Metallur. Eng., 23, 1 (2003).
  5. J.G. Strobos and J.F.C. Friend, Hydrometallurgy, 74, 165 (2004); doi:10.1016/j.hydromet.2004.03.002.
  6. M.T. Ahmed, E.-S. Abdel Hadi, S. El Samahy and K. Youssof, J. Hazard. Mater., 80, 1 (2000); doi:10.1016/S0304-3894(00)00300-9.
  7. G. Strohmeier and J.E. Bonestell, Iron and Steel Engineer, 73, 4 (1996).
  8. Q.X. He and Y.L. Qin, Jiangxi Nonferrous Metals, 22, 2 (2008).
  9. C.A. Pickles, Sep. Purif. Technol., 59, 115 (2008); doi:10.1016/j.seppur.2007.05.032.
  10. X.Z. Guo, B.H. Zhang and H.B. Yang, Environ. Eng., 20, 2 (2002).
  11. Y.N. Dai and B. Yang, Vacuum Metallurgy of Non-Ferrous Metals, Metallurgical Industry Press, Beijing, China, pp. 278-293 (2000).
  12. F.L. Zhu, H.B. Yuan, Q.C. Yu, B. Yang, B.Q. Xu and Y.N. Dai, Trans. Nonferrous Met. Soc. China, 21, 1855 (2011); doi:10.1016/S1003-6326(11)60941-2.
  13. W. Sen, B.Q. Xu, B. Yang, H.H. Sun, J.- Song, H.- Wan and Y.- Dai, Trans. Nonferrous Met. Soc. China, 21, 185 (2011); doi:10.1016/S1003-6326(11)60697-3.
  14. Y.B. Feng, B. Yang and Y.N. Dai, Trans. Nonferrous Met. Soc. China, 22, 215 (2012); doi:10.1016/S1003-6326(11)61163-1.
  15. W. Sen, H.H. Sun, B. Yang, B.Q. Xu, W.H. Ma, D.C. Liu and Y.N. Dai, Int. J. Refract. Met. Hard Mater, 28, 628 (2010); doi:10.1016/j.ijrmhm.2010.06.005.
  16. L.Z. Xiong, Q.Y. Chen, Z.L. Yin, P.M. Zhang, Z.Y. Ding and Z.X. Liu, Nonferrous Met. Soc. China, 22, 694 (2012); doi:10.1016/S1003-6326(11)61233-8.
  17. L.Z. Xiong, Q.Y. Chen, Z.L. Yin and P.M. Zhang, Chinese J. Vac. Sci. Technol., 3, 3 (2011).
  18. L.Z. Xiong, Q.Y. Chen, Z.L. Yin and P.M. Zhang, Mining Metallur. Eng., 29, 64 (2009).
  19. D.L. Ye and J.H. Hu, Practical Data Handbook of Inorganic Thermodynamics, edn 2, pp. 48-62 (2002).
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