低品位钨渣处理工艺研究 |
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引用本文: | 杨少华,王君,谢宝如,赖晓晖,王浩然. 低品位钨渣处理工艺研究[J]. 有色金属科学与工程, 2015, 6(6): 29-32. DOI: 10.13264/j.cnki.ysjskx.2015.06.006 |
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作者姓名: | 杨少华 王君 谢宝如 赖晓晖 王浩然 |
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作者单位: | 江西理工大学冶金与化学工程学院,江西 赣州 341000 |
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基金项目: | 国家自然科学基金资助项目51164013 |
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摘 要: | 采用碳酸钠焙烧—氢氧化钠浸出的方法,从含钨 1.4 %的碱浸钨渣中回收钨,试验研究了浸出温度、反应时间、碱浓度与液固比对钨浸出率的影响.结果表明,在浸出温度 80 ℃,碱浓度 130 g/L, 反应时间 45 min,液固比(指碱液与钨渣的质量比,下同)4:1 的试验条件下,钨的浸出率可达到 90.5 %, 达到了高效浸出钨的目的.该工艺方法流程简单,操作条件温和,回收率高,具有良好的应用前景.
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关 键 词: | 钨渣 焙烧 碱浸出 再回收 |
收稿时间: | 2015-04-17 |
Treatment process of low-grade tungsten slag |
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Affiliation: | School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China |
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Abstract: | Soda roasting-caustic soda leaching method was used to recycle the tungsten from 1.4 % tungsten contained alkali leaching slag. The influence of leaching temperature, reaction time, alkali concentration and liquid-solid ratio on the leaching rate of tungsten were investigated. The results show that the tungsten leaching rate can reach 90.5 % which achieves the purpose of leaching tungsten effectively, with 80 ℃ leaching temperature, 130 g/L alkali concentration, 45 min leaching time and 4 :1 liquid-solid ratio. This method has a good application prospect due to its simple process, mild operation condition and high recovery rate. |
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