| 双极性膜电渗析技术在硅溶胶生产中的应用 |
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| 引用本文： | 林爱光. 双极性膜电渗析技术在硅溶胶生产中的应用[J]. 膜科学与技术, 2001, 21(2): 66-69 |
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| 作者姓名： | 林爱光 |
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| 作者单位： | 清华大学化学工程系, |
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| 摘 要： | 报道了双极性膜电渗析取代行工艺中泡花碱转化成硅溶胶的酸化过程的研究，转化得到硅溶胶中SiO2含量达到6％－105，pH值在3以下，平均电流效率在55％－75％范围内，平均耗电低于1kW.h/kg(每千克硅溶胶），制得的硅溶胶产品符合工业要求。
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| 关 键 词： | 双极性膜 电渗析 硅溶胶 转化率 电流密度 |
| 文章编号： | 1007-8924(2001)02-0066-04 |
| 修稿时间： | 2000-06-13 |
Application of bipolar membrane electrodialysis in production of silicic acid |
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| LIN Aiguang. Application of bipolar membrane electrodialysis in production of silicic acid[J]. Membrane Science and Technology, 2001, 21(2): 66-69 |
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| Authors: | LIN Aiguang |
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| Abstract: | A new technology, bipolar membrane electrodialysis(BME), was developed to convert sodium silicate(Na２SO３） into silicasol (H２SO３）. By optimizing the operation condition, one can easily obtain the product with desired SiO２ content about 6%～10% and pH value about 3. In this new process, the average efficiency of electric current is 55%～75% and the power cost is less than 1 kW*h/(kg silicasol). So it provides a attractive method for the production of silicasol. |
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| Keywords: | bipolar membrane electrodialysis silicasol(silicic acid) |
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