| 采用氧化焙烧-酸浸法从高碳石煤中提钒试验研究 |
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| 引用本文： | 汪平,冯雅丽,李浩然,张萍,刘欣伟. 采用氧化焙烧-酸浸法从高碳石煤中提钒试验研究[J]. 中南大学学报(自然科学版), 2011, 0(10) |
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| 作者姓名： | 汪平 冯雅丽 李浩然 张萍 刘欣伟 |
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| 作者单位： | 北京科技大学土木与环境工程学院;中国科学院过程工程研究所生化工程国家重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(20876160) |
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| 摘 要： | 针对广西某难浸高碳石煤,比较相同焙烧和酸浸条件下静态焙烧矿和流态化焙烧矿钒的浸出率,优化流态化焙烧矿的酸浸条件。研究结果表明:流态化焙烧矿酸浸钒的浸出率比静态焙烧矿酸浸钒的浸出率平均高24%,所以,在相同焙烧温度、时间下流态化焙烧较静态焙烧更利于钒的浸出;在液固质量比为0.8:1.0,二氧化锰添加量为3%和氢氟酸添加量为2%的条件下,得最佳酸浸条件,即酸矿质量比为0.4:1.0,浸出温度为150℃,浸出时间为6 h,在此最佳酸浸条件下,钒浸出率可达88.26%。
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| 关 键 词： | 钒 高碳石煤 氧化焙烧 酸浸 |
Extracting vanadium from high-carbon stone coal by oxidizing roasting-acid leaching method |
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| WANG Ping,FENG Ya-li,LI Hao-ran,ZHANG Ping,LIU Xin-wei. Extracting vanadium from high-carbon stone coal by oxidizing roasting-acid leaching method[J]. Journal of Central South University:Science and Technology, 2011, 0(10) |
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| Authors: | WANG Ping FENG Ya-li LI Hao-ran ZHANG Ping LIU Xin-wei |
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| Affiliation: | WANG Ping1,FENG Ya-li1,LI Hao-ran2,ZHANG Ping1,LIU Xin-wei1 (1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China,2.National Key Laboratory of Biochemical Engineering,Institute of Process Engineering,Chinese Academy of Science,Beijing 100080,China) |
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| Abstract: | Based on refractory high-carbon stone coal of Guangxi,the leaching rate of vanadium of static roasting and fluidized roasting in the same roasting and acid leaching condition was compared.The results show that the leaching rate of vanadium of fluidized roasting-acid leaching method is averagely 24% higher than that of static roasting-acid leaching method.Therefore,fluidized roasting is more favorable to leach vanadium.The optimal acid leaching condition for vanadium extraction is as follows: acid-mine ratio... |
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| Keywords: | vanadium high-carbon stone coal oxidizing roasting acid leaching |
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