| 回收磷化工废液中的氟制备氟化钠 |
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| 引用本文： | 胡震. 回收磷化工废液中的氟制备氟化钠[J]. 无机盐工业, 2011, 43(6): 53-54 |
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| 作者姓名： | 胡震 |
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| 作者单位： | 四川理工学院材料与化学工程学院，四川自贡 643000 |
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| 基金项目： | 四川理工学院院级科研基金项目，四川理工学院大学生创新基金 |
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| 摘 要： | 以磷化工行业产生的含氟废液中的氟和磷酸三钠为原料制备氟化钠，考察了原料配比、反应温度、反应时间、搅拌速率对氟化钠生成量的影响。最佳工艺条件：磷酸三钠与氟化铵物质的量比为1.4，反应温度为95 ℃，反应时间为60 min，搅拌速率为350 r/min。在最佳条件下，用100 g废液可以制得4.02 g氟化钠，废液中氟的回收率达到85%。
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| 关 键 词： | 磷化工废液 氟资源回收 氟化钠 |
Preparation of sodium fluoride by recovering fluorine from waste liquid in phosphate chemical industry |
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| Hu Zhen. Preparation of sodium fluoride by recovering fluorine from waste liquid in phosphate chemical industry[J]. Inorganic Chemicals Industry, 2011, 43(6): 53-54 |
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| Authors: | Hu Zhen |
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| Affiliation: | School of Materials and Chemical Engineering，Sichuan University of Science & Engineering,Zigong 643000,China |
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| Abstract: | Sodium fluoride was prepared with trisodium phosphate and fluorine in the waste liquid from phosphate chemical industry as raw materials.Influences of various factors,such as mix ratio of raw materials(amount-of-substance ratio of trisodium phosphate to ammonium fluoride),reaction temperature,reaction time,and stirring speed,on yield of sodium fluoride were investigated.Optimum conditions were as follows:amount-of-substance ratio of trisodium phosphate to ammonium fluoride was 1.4,reaction time was 60 min,r... |
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| Keywords: | waste liquid in phosphate chemical industry fluorine resource recovery sodium fluoride |
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