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| Effects of Glue on Power Consumption and Quality of Cathode Zinc of the Long Period Zinc Electrodeposition |
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Received:March 19, 2010
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| DOI：DOI：10.3969/j.issn.1007-7545.2011.01.004 |
| KeyWord:Zinc electrodeposition; Glue; Power consumption; Current efficiency; Cathode zinc |
| Author | Institution |
| HUANG Juan |
昆明理工大学冶金与能源工程学院 |
| LI Jian |
昆明理工大学冶金与能源工程学院 |
| SUN Cheng-yu |
云南驰宏锌锗股份有限公司 |
| LUO Yong-guang |
云南驰宏锌锗股份有限公司 |
| SHI Zhe |
昆明理工大学冶金与能源工程学院 |
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| Abstract: |
| the effects of glue on power consumption, current efficiency and physical characteristics of zinc deposits of long period zinc electrodeposition from acidic sulfate electrolyte were investigated. The volume of the electrolyzer used in the test was of one thousandth of the electrolyzer used in workshop. The electrowinning experiments were ongoing for 48 hours, keeping current density of 450 A/m2, the temperature of electrolyte at 37~39 ℃, the concentration of Zn2+ at 53~58 g/L, the concentration of H2SO4 at 170~180 g/L. The results show that the per ton zinc dosages of glue of 0.1~0.3 kg will lead to cell voltage of 2.99~3.05 V, per ton zinc power consumption of 2 820~2 860 kw?h and current efficiency of more than 90%. The deposits morphology of zinc were smooth and compact. The per ton zinc dosages of glue of more than 0.3 kg will cause significant increase in power consumption, and decrease in current efficiency. The deposits morphology of zinc were rough, dull and with much dendrites. |
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