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| Advances in the Technology of Dechlorination from Zinc Oxide Dust |
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Received:June 25, 2012
Revised:April 26, 2013
Accepted:July 02, 2012
Published Online:May 16, 2013
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| DOI： |
| KeyWord:Zinc oxide dust; Dechlorination; Microwave; Roasting |
| Author | Institution |
| WANG Ya-jian |
Key Laboratory of Unconventional Metallurgy,Ministry of Education |
| ZHANG Li-bo |
Key Laboratory of Unconventional Metallurgy,Ministry of Education |
| PENG Jin-hui |
Key Laboratory of Unconventional Metallurgy,Ministry of Education |
| SUN Cheng-yu |
Yunnan Chihong Zn |
| LUO Yong-guang |
Yunnan Chihong Zn |
| CHEN Guo |
Key Laboratory of Unconventional Metallurgy,Ministry of Education |
| JU Shao-hua |
Key Laboratory of Unconventional Metallurgy,Ministry of Education |
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| Abstract: |
| Zinc oxide dust has been used as one of the important raw materials in the zinc smelter industry. The chlorine content in the dust affects the energy consumption and product quality. This paper provides an overview of the zinc oxide dust sources and the effect of chlorine on zinc electrowinning. The existing dechlorination techniques used in the pre-dechlorination and dechlorination solution, including multihearth roasting, alkali washing and ion-exchanging, are presented. A new microwave roasting technology for dechlorination processing is proposed based on the study of existing traditional methods combined with the features of microwave heating. Suggestions for the development of this new technology are given. |
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