Selective Sulfidation of Lead Smelter Slag with Sulfur
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- 作者：Junwei Han ; Wei Liu ; Dawei Wang ; Fen Jiao…
- 刊名：Metallurgical and Materials Transactions B
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：47
- 期：1
- 页码：344-354
- 全文大小：2,629 KB
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Wei Liu (1)
Dawei Wang (1)
Fen Jiao (1)
Wenqing Qin (1)
1. School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, P.R. China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Materials Science
Manufacturing, Machines and Tools
Metallic Materials
Operating Procedures and Materials Treatment
Characterization and Evaluation Materials
Numerical and Computational Methods in Engineering - 出版者：Springer Boston
- ISSN：1543-1916
文摘
The selective sulfidation of lead smelter slag with sulfur was studied. The effects of temperature, sulfur dosage, carbon, and Na salts additions were investigated based on thermodynamic calculation. The results indicated that more than 96 pct of zinc in the slag could be converted into sulfides. Increasing temperature, sulfur dosage, or Na salts dosage was conducive to the sulfidation of the zinc oxides in the slag. High temperature and excess Na salts would result in the more consumption of carbon and sulfur. Carbon addition not only promoted the selective sulfidation but reduced the sulfur dosage and eliminated the generation of SO2. Iron oxides had a buffering role on the sulfur efficient utilization. The transformation of sphalerite to wurtzite was feasible under reducing condition at high temperature, especially above 1273 K (1000 °C). The growth of ZnS particles largely depended upon the roasting temperature. They were significantly increased when the temperature was above 1273 K (1000 °C), which was attributed to the formation of a liquid phase. Manuscript submitted September 25, 2015.