| 钒铬溶液中杂质砷的去除工艺 |
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| 引用本文： | 蒋霖,伍珍秀,罗翔.钒铬溶液中杂质砷的去除工艺[J].金属矿山,2016,45(4):169-171. |
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| 作者姓名： | 蒋霖 伍珍秀 罗翔 |
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| 作者单位： | 1.攀钢集团研究院有限公司，四川 攀枝花 617000；2.钒钛资源综合利用国家重点实验室，四川 攀枝花 617000；3.昆明理工大学化学工程学院，云南 昆明 650500 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目(2013CB632600) |
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| 摘 要： | 以浓度为30%的H2O2作为氧化剂、Fe2（SO4）3为除砷剂，采用砷酸铁沉淀法对钒铬溶液进行除砷条件试验。结果表明：在反应初始pH=3.0、n(Fe)/n(As)=5、反应温度为40 ℃、反应时间为2 h条件下，钒铬溶液除砷率可达92.07%，钒、铬损失率均在5%以下。最佳除砷条件下获得的钒铬溶液经浓硫酸水解，水解产物沉淀过滤后添加硫酸铵纯化，纯化物烘干后在温度为500 ℃的马弗炉中煅烧3 h，最后得到粉状V2O5，可以满足YB/T 5304-2011中牌号V2O5 98质量要求。
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| 关 键 词： | 钒铬溶液 砷酸铁 除砷率 V2O5 |
Removing Process of Arsenic from the Solution Containing Vanadium and Chromium |
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| Jiang Lin,Wu Zhenxiu,Luo Xiang.Removing Process of Arsenic from the Solution Containing Vanadium and Chromium[J].Metal Mine,2016,45(4):169-171. |
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| Authors: | Jiang Lin Wu Zhenxiu Luo Xiang |
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| Affiliation: | 1.Pangang Group Research Institute Co.，Ltd.，Panzhihua 617000，China；2.State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization，Panzhihua 617000，China；3.School of Chemical Engineering,Kunming University of Science and Technology，Kunming 650500，China |
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| Abstract: | Iron arsenate precipitation method has been used to remove the arsenic from vanadium and chromium solution with concentration of 30% H2O2 as oxidant,Fe2(SO4)3 for arsenic removal agent. The results showed that:with the initial reac-tion pH=3. 0,n(Fe)/n(As)=5,at reaction temperature of 40 ℃for 2 h,arsenic removal rate of chrome and vanadium solu-tion can reach 92. 07%,both vanadium and chromium loss rate is under 5%. Chrome vanadium solution obtained by the opti-mum condition via concentrated sulfuric acid hydrolysis,the hydrolysate precipitation filtration after adding ammonium sulfate purification,purification products calcinated in the muffle furnace at temperature of 500 ℃ for 3 h,the final powder V2 O5 can satisfy YB/T 5304-2011 in the brand V2 O598 quality requirements. |
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| Keywords: | Vanadium and chromium solution Iron arsenate Arsenic removal rate V2 O5 |
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