| 活性硅对湿法磷酸工艺的影响 |
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| 引用本文： | 张若愚,李顺芬. 活性硅对湿法磷酸工艺的影响[J]. 化肥工业, 2004, 31(2): 13-14,36 |
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| 作者姓名： | 张若愚 李顺芬 |
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| 作者单位： | 昆明理工大学生物与化学工程学院,650224;昆明理工大学生物与化学工程学院,650224 |
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| 摘 要： | 论述了活性SiO2对湿法磷酸生产的结晶、过滤、设备腐蚀、结垢以及净化等操作过程的影响,同时报道了用硅藻土脱氟的试验研究。结果表明,当钠型硅藻土助滤剂的添加量在8.00 g/L、絮凝剂的添加量在0.10g/L左右时,湿法磷酸脱氟完全可以达到饲料级磷酸指标。
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| 关 键 词： | 活性二氧化硅 湿法磷酸 硅藻土 脱氟 |
Effect of Activated Silica on Wet-Process Phosphoric Acid Technology |
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| Zhang Ruoyu and Li Shunfen. Effect of Activated Silica on Wet-Process Phosphoric Acid Technology[J]. Journal of the Chemical Fertilizer Industry, 2004, 31(2): 13-14,36 |
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| Authors: | Zhang Ruoyu and Li Shunfen |
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| Affiliation: | Zhang Ruoyu and Li Shunfen |
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| Abstract: | The effect of activated silica is discussed on crystallization, filtration, scale formation, corrosion of equipment and purification in the production of wet-process phosphoric acid, and the experimental study is reported of defluorination with diatomite. Results show that when the addition of sodium type di-atomite filter aid is about 8.00 g/L and that of flocculating agent around 0.10 g/L, the defluorination of wet-process phosphoric acid can fully attain the indicators for feed-grade phosphoric acid. |
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| Keywords: | activated silica wet-process phosphoric acid diatomite defluorination |
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