Citation:
JIANG Liang-Xing, ZHONG Shui-Ping, LAI Yan-Qing, LV Xiao-Jun, HONG Bo, PENG Hong-Jian, ZHOU Xiang-Yang, LI Jie, LIU Ye-Xiang. Effect of Current Densities on the Electrochemical Behavior of a Flat Plate Pb-Ag Anode for Zinc Electrowinning[J]. Acta Physico-Chimica Sinica,
;2010, 26(09): 2369-2374.
doi:
10.3866/PKU.WHXB20100935
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We studied the anodic potential, corrosion rate, and anodic passive layer of a flat plate Pb-Ag (0.8% (mass fraction, w) anode over a long period of polarization under different current densities. Additionally, the cathode current efficiency and quality of the zinc product in the ZnSO4-MnSO4-H2SO4 electrolyte were also studied. The morphology of the anodic passive layer was characterized by scanning electron microscopy (SEM). The results show that the current density greatly affects the electrochemical behavior of the anode and the cathode during zinc electrowinning irrespective of Mn2+. With an increase in the current density, the anodic potential, corrosion rate, cathode current efficiency, and quantity of anode slime increased while the Pb content in the zinc product decreased. When the current density decreased from 500 to 200 A·m-2 in the ZnSO4-MnSO4-H2SO4 electrolyte, the stable anodic potential and the corrosion rate decreased by 64 mV and 40%, respectively. Under a lower current density, the anodic potential stabilizes more easily and the passive layer that forms on the surface of the anode is denser and it adheres better to the base body, which is advantageous for the reduction of the corrosion rate. Therefore, to reduce the anodic potential, corrosion rate, and the quantity of anode slime, increase the cathode current efficiency and quality of zinc product, we suggested that the ideal working condition for zinc electrowinning is a higher cathodic current density and lower anodic current density.
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[1]
1. Petrova, M.; Stefanov, Y.; Noncheva, Z.; Dobrev, T.; Rashkov, S.British Corrosion Journal, 1999, 34(3): 198
-
[2]
2. Stefanov, Y.; Dobrev, T. Transactions of the Institute of MetalFinishing, 2005, 83(6): 296
-
[3]
3. Ivanov, I.; Stefanov, Y.; Noncheva, Z.; Petrova, M.; Dobrev, T.;Mirkova, L.; Vermeersch, R.; Demaerel, J. P. Hydrometallurgy,2000, 57: 109
-
[4]
4. Rashkov, S.; Dobrev, T.; Noncheva, Z.; Stefanov, Y.; Rashkova,B.; Petrova, M. Hydrometallurgy, 1999, 52: 223
-
[5]
5. Newnham, R. H. Journal of Applied Electrochemistry, 1992, 22:116
-
[6]
6. Zhong, S. P.; Lai, Y. Q.; Jiang, L. X.; Lü, X. J.; Chen, P. R.; Li, J.;Liu, Y. X. Journal of Central South University of Technology,2009, 16(2): 236
-
[7]
7. Lupi, C.; Pilone, D. Hydrometallurgy, 1997, 44: 347
-
[8]
8. Rashkov, S.; Stefanov, Y.; Noncheva, Z.; Petrova, M.; Dobrev, T.;Kunchev, N.; Petrov, D.; Vlaev, S. T.; Mihnev, V.; Zarev, S.;Georgieva, L.; Buttinelli, D. Hydrometallurgy, 1996, 40: 319
-
[9]
9. Camurri, C. P.; López, M. J.; Pagliero, A. N.; Vergara, F. G.Materials Characterization, 2001, 47: 105
-
[10]
10. Li, B. S.; Lin, A.; Gan, F. X. Trans. Nonferrous Met. Soc. China,2006, 16(5): 1193
-
[11]
11. Hu, J. M.; Zhang, J. Q.; Cao, C. N. International Journal ofHydrogen Energy, 2004, 29(8): 791
-
[12]
12. Stefanov, Y.; Dobrev, T. Transactions of the Institute of MetalFinishing, 2005, 83(6): 291
-
[13]
13. Cattarin, S.; Guerriero, P.; Musiani, M. Electrochimica Acta, 2001,46: 4229
-
[14]
14. Shrivastava, P.; Moats, M. S. Journal of the ElectrochemicalSociety, 2008, 155(7): E101
-
[15]
15. de Mussy, J. P. G.; MacPherson, J. V.; Delplancke, J. L.Electrochimica Acta, 2003, 48: 1131
-
[16]
16. Felder, A.; Prengaman R. D. JOM, 2006, 58(10): 28
-
[17]
17. Zhong, S. P.; Lai, Y. Q.; Jiang, L. X.; Lü, X. J.; Chen, P. R.; Li, J.;Liu, Y. X. Journal of Central South University of Technology,2008, 15(6): 757
-
[18]
18. Lai, Y. Q.; Jiang, L. X.; Li, J.; Zhong, S. P.; Lü, X. J.; Peng, H. J.;Liu, Y. X. Hydrometallurgy, 2010, 102: 73
-
[19]
19. Lai, Y. Q.; Jiang, L. X.; Li, J.; Zhong, S. P.; Lü, X. J.; Peng, H. J.;Liu, Y. X. Hydrometallurgy, 2010, 102: 81
-
[20]
20. Peng, R. Q.; Ren, H. J.; Zhang, X. P. Metallurgy of lead and zinc.Beijing: Science Press, 2003: 413 [彭容秋, 任鸿九,张训鹏.铅锌冶金学.北京:科学出版社, 2003: 413]
-
[21]
21. Mei, G. G.; Wang, R. D.; Zhou, J. Y.; Wang, H. Hyrometallurgy ofzinc. Changsha: Central South University Press, 2001: 340-402[梅光贵,王德润, 周敬元, 王辉.湿法炼锌学,长沙:中南大学出版社, 2001: 340-402]
-
[22]
22. Zhang, Y. P. Hydrometallurgy of China, 2001, 20(4): 169[张玉萍.湿法冶金, 2001, 20(4): 169]
-
[23]
23. Ivanov, I.; Stefanov, Y.; Noncheva, Z.; Petrova, M.; Dobrev, T.;Mirkova, L.; Vermeersch, R.; Demaerel, J. P. Hydrometallurgy,2000, 57: 125
-
[24]
24. Nguyen, T.; Atrens, A. Hydrometallurgy, 2009, 96: 14
-
[25]
25. Pu, Y.; O'Keefe, T. J. Journal of the Electrochemical Society,2002, 149(5): 558
-
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