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有色金属(冶炼部分):2016,(9):13-16
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提钒尾渣中钒铬的浸出与萃取
汪其,姜茂发,王猛,张洁
(东北大学 多金属共生矿生态化冶金教育部重点实验室,东北大学 多金属共生矿生态化冶金教育部重点实验室,东北大学 多金属共生矿生态化冶金教育部重点实验室,东北大学 多金属共生矿生态化冶金教育部重点实验室)
Leaching and Extraction of Vanadium and Chromium from Vanadium Tailings
WANG Qi,JIANG Mao-fa,WANG Meng and ZHANG Jie
(Key Laboratory for Ecological Metallurgy of Multimetallic Mineral,Ministry of Education,Northeastern University,,,)
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投稿时间:2016-04-08     修订日期:2016-04-12     录用日期:2016-04-13     网络发布日期:2016-08-19
中文摘要: 采用硫酸浸出和萃取分离从提钒尾渣中回收有价元素。结果表明,尾渣经80%质量浓度的硫酸溶液浸出后,钒、铬浸出率分别达98.2%、84.8%;以20% P204+80%磺化煤油(体积百分数)为萃取剂,对浸出液进行三级萃取并反萃后,钒的回收率可达56.2%,萃取过程中铬的损失率低于4%,萃余液水解后可得到纯度为89.6%的Cr2O3产品。实现了浸出液中钒、铬的分离和回收。
中文关键词: 提钒尾渣  硫酸浸出  P204  萃取
Abstract:Valuable elements were recovered from vanadium tailings by sulfuric acid leaching and solvent extraction. The results indicate that extraction rate of vanadium and chromium is 98.2% and 84.8% respectively when leached with 80% H2SO4. Vanadium recovery rate is 56.2% after three-stage extraction and stripping with 20% P204 80% sulfonated kerosene as extractant. Chromium loss ratio is 4% below in extraction process. Product of Cr2O3 with grade of 89.6% is obtained by hydrolysis of raffinate. Separation and recovery of vanadium and chromium from vanadium tailings are achieved by this method.
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基金项目:国家级大学生创新创业训练计划资助项目(201510145036)
引用文本:
汪其,姜茂发,王猛,张洁.提钒尾渣中钒铬的浸出与萃取[J].有色金属(冶炼部分),2016(9):13-16.
WANG Qi,JIANG Mao-fa,WANG Meng,ZHANG Jie.Leaching and Extraction of Vanadium and Chromium from Vanadium Tailings[J].Nonferrous Metals (Extractive Metallurgy),2016(9):13-16.

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