| 氟化铵溶解含氟硅渣制备氟硅酸铵的实验研究 |
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| 引用本文： | 隋岩峰,刘松林,秦红.氟化铵溶解含氟硅渣制备氟硅酸铵的实验研究[J].无机盐工业,2020,52(1):76-78. |
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| 作者姓名： | 隋岩峰 刘松林 秦红 |
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| 作者单位： | 1. 中低品位磷矿及其共伴生资源高效利用国家重点实验室,贵州贵阳 5500022. 瓮福技术研究院 |
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| 基金项目： | 贵州省科技计划项目(黔科合支撑[2017]2317) |
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| 摘 要： | 以氟化铵溶液和含氟硅渣为原料,通过化学溶解的方式,制备氟硅酸铵产品。考察了反应温度、反应时间、氟化铵溶液浓度和物料配比(氟化铵与二氧化硅的物质的量比)等不同工艺条件对氟硅酸铵收率、二氧化硅转化率的影响。实验结果表明:反应温度为93℃、反应时间为60 min、氟化铵溶液质量分数为20%~30%、物料配比为6∶1.1、反应体系搅拌速度为200~300 r/min时,氟硅酸铵的收率和氟化铵的转化率可控制在90%以上。
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| 关 键 词： | 氟化铵 硅渣 氟硅酸铵 |
| 收稿时间： | 2019-08-07 |
Experimental study on preparation of ammonium fluosilicate from fluorinated silica slag dissolved by ammonium fluoride |
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| Sui Yanfeng,Liu Songlin,Qin Hong.Experimental study on preparation of ammonium fluosilicate from fluorinated silica slag dissolved by ammonium fluoride[J].Inorganic Chemicals Industry,2020,52(1):76-78. |
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| Authors: | Sui Yanfeng Liu Songlin Qin Hong |
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| Affiliation: | 1. State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources,Guiyang 550002,China2. Wengfu Institute of Technology |
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| Abstract: | Ammonium fluosilicate was prepared with ammonium fluoride solution and fluorinated silica slag as raw materials by chemical dissolution.The effects of reaction temperature,reaction time,concentration of ammonium fluoride solution and material ratio（amount-of-substance ratio of ammonium fluoride to silica） on the yield of ammonium fluosilicate and conversion of silicon dioxide were investigated.The experimental results showed that the reaction temperature was 93 ℃,the reaction time was 60 min,the mass fraction of ammonium fluoride solution was 20%~30%,the materials ratio was 6∶1.1 and the stirring speed of reaction system was at 200~300 r/min.Under the conditions,the yield of ammonium fluosilicate and the conversion of ammonium fluoride can be controlled over 90%. |
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| Keywords: | ammonium fluoride silicon slag ammonium fluosilicate |
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