| 无盐焙烧酸法提取五氧化二钒的新工艺研究 |
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| 引用本文： | 陈庆根.无盐焙烧酸法提取五氧化二钒的新工艺研究[J].矿产综合利用,2010(5). |
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| 作者姓名： | 陈庆根 |
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| 作者单位： | 厦门紫金矿冶技术有限公司,福建,厦门,361101 |
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| 摘 要： | 对江西某石煤钒矿进行无盐焙烧—酸浸—萃取提取五氧化二钒工艺研究。结果表明:该钒矿在-0.074mm占80%、焙烧温度800℃焙烧3h,硫酸浸出,五氧化二钒的浸出率超过90%;浸出液溶剂萃取,反萃液硫酸氨沉钒,最终得到纯度超过98%的五氧化二钒产品,综合回收率超过80%。
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| 关 键 词： | 五氧化二钒 萃取 反萃 浸出 |
Study on the New Technology for Extracting V2O5 by Roasting and Acid Leaching Methods |
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| CHEN Qing-gen.Study on the New Technology for Extracting V2O5 by Roasting and Acid Leaching Methods[J].Multipurpose Utilization of Mineral Resources,2010(5). |
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| Authors: | CHEN Qing-gen |
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| Abstract: | A new technology for extracting V2O5 from a vanadium ore was tested by using the flowsheet of roasting in air without salt-sulfuric acid leaching-solvent extraction.The results showed that when the ore has been roasted 3h in air at 800℃ and the grain size of roasted ore is 80%-0.074mm,the leaching rate of V2O5 is over 90%.Then,solvent extraction of V2O5 from leach liquor and precipitation of vanadium from re-extraction liquor with(NH4)2SO4.The purity of final V2O5 product is above 98%.The overall recovery of V2O5 reached over 85%. |
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| Keywords: | V2O5 Extraction Re-extraction Leaching |
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