| 结晶法净化湿法磷酸生产Na_2HPO_4·12H＿2O工艺研究 |
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| 引用本文： | 侯长军,党洁修. 结晶法净化湿法磷酸生产Na_2HPO_4·12H＿2O工艺研究[J]. 四川理工学院学报(自然科学版), 1995, 0(4) |
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| 作者姓名： | 侯长军 党洁修 |
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| 作者单位： | 四川轻化工学院化学工程系，四川联合大学化工学院 |
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| 摘 要： | 本文采用结晶法新工艺净化湿法磷酸生产Ｎａ２ＨＰＯ４·１２Ｈ２Ｏ，测定了反应温度、搅拌强度、ＮａｏＨ浓度、反应时间与Ｐ２Ｏ５转化率的变化关系。讨论了各因素对反应过程的影响。通过正交试验及极差分析，得到了适宜的工艺条件，在此条件下生产的Ｎａ２ＨＰＯ３·１２Ｈ２ｏ产品已达部颁标准ＨＧ：１－７１３－７０一级产品质量。
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| 关 键 词： | 湿法磷酸；净化；Na_2HPO_4·12H_2O |
A STUDY OF CRYSTAL PROCESS PURIFYING WET-PROCESS PHOSPHRIC ACID AND PRODUCINGNA_2HPO_412H_2O |
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| Hou Changjun. A STUDY OF CRYSTAL PROCESS PURIFYING WET-PROCESS PHOSPHRIC ACID AND PRODUCINGNA_2HPO_412H_2O[J]. Journal of Sichuan University of Science & Engineering(Natural Science Editton), 1995, 0(4) |
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| Authors: | Hou Changjun |
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| Affiliation: | Hou Changjun(Dept.of Chem.Eng.Sichuan Institute of Light Ind.& Chem.Tech.Zigong 64305.)Dang Jiexiu(Dept.of Chem.Eng.Sichuan Union University Chengdu 610065) |
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| Abstract: | A new crystal process for purifying wet-process phosphoric acid and producing Na2HPO4·12H2O and the relationship between temperture, rate of stirrer,concentration of sodium hydroxide and time of reaction with conversion of P2O5 are studied.On the basic of experiments and discussion, the optimum reaction technology conditions are ayailable.The quality of the product reaches the first grade quality of HG:1-713-70. |
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| Keywords: | purifying wet-process phosphoric acid tweleve hydrate-dibasic sodium hydrphosphate |
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