| 明矾石精矿水浸—结晶法制备硫酸钾试验研究 |
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| 引用本文： | 王瑞永. 明矾石精矿水浸—结晶法制备硫酸钾试验研究[J]. 有色冶金设计与研究, 2014, 0(3): 14-16 |
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| 作者姓名： | 王瑞永 |
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| 作者单位： | 紫金矿冶设计研究院,福建上杭364200 |
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| 摘 要： | 以紫金山铜尾矿中的明矾石精矿为原料,采用焙烧—水浸—循环浸出—结晶的工艺路线制备硫酸钾。试验结果表明,在浸出温度为室温、液固比为3、浸出时间10 min的优化条件下,水浸K2O时,K2O的浸出率为84.08%;采用三次循环浸出后水浸液中的K2SO4的浓度达到118.10 g/L,冷却结晶后的硫酸钾产品达到了农业用硫酸钾GB 20406-2006的国标要求。
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| 关 键 词： | 铜尾矿 明矾石精矿 水浸 循环浸出 硫酸钾 |
Experimental Research on Water Leaching-Crystallization Process to Produce Potassium Sulfate from Alunite Concentrate |
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| WANG Ruiyong. Experimental Research on Water Leaching-Crystallization Process to Produce Potassium Sulfate from Alunite Concentrate[J]. , 2014, 0(3): 14-16 |
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| Authors: | WANG Ruiyong |
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| Affiliation: | WANG Ruiyong (Zijin Engineering and Research institute of Mining and Metallurgy, Shanghang, Fujian 364200, China) |
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| Abstract: | Taking Alunite concentrate from copper tailings in Zijinshan as raw material, potassium sulfate is prepared adopting the process of roasting-water leaching-recycled leaching-crystallization. Based on experimental research, it is indicated under the following condition that room temperature, ratio of liquid and solid of 3, leaching period of 10min, and leaching rate of K 2O of 84.08%, the result is better. After three recycled leaching, the concentration of K2SO4 in the water solution reaches 118.10 g/L, and the potassium sulfate product after cooled and crystallization conforms to the requirement of GB 20406-2006. |
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| Keywords: | copper tailings alunite concentrate water leaching recycled leaching potassium sulfate |
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