| 陶瓷膜在制备超纯超细粉体中的应用 |
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| 引用本文： | 柏文静,薛晓波,唐礼升,吴俊,邢卫红. 陶瓷膜在制备超纯超细粉体中的应用[J]. 中国粉体技术, 2005, 11(5): 28-30 |
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| 作者姓名： | 柏文静 薛晓波 唐礼升 吴俊 邢卫红 |
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| 作者单位： | 1. 江苏久吾高科技股份有限公司,江苏,南京,21006l
2. 南京工业大学,膜科学技术研究所,江苏,南京,210009 |
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| 基金项目： | 南京市科学基金资助项目,编号：200001017. |
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| 摘 要： | 为把陶瓷膜错流过滤技术应用于超纯度的琢-Al2O3超细粉体制备当中,通过实验选择了合适孔径的陶瓷膜,考察了操作压力、膜面流速、温度、浆料浓度等工艺参数的影响,确定了膜的再生方式。结果表明:采用孔径0.2滋m的ZrO2膜对琢-Al2O3粉体的中间体进行洗涤,温度为70℃,过膜压差为0.1MPa,膜面流速为5m.s-1,浆料浓度由8%浓缩到16%间断加水清洗,在加入助洗剂的条件下,过滤效果最好,超细粉体能完全回收,且提纯后制备的粉体琢-Al2O3的纯度能达到99.95%。
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| 关 键 词： | 陶瓷膜 超细粉体 纯化 超纯琢-Al2O3 |
| 文章编号： | 1008-5548（2005）05-0028-03 |
| 收稿时间： | 2004-12-24 |
| 修稿时间： | 2004-12-24 |
Application of Ceramic Filtration Membrane in Preparation of Super-pure and Superfine Powder |
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| BAI Wen-jing,XUE Xiao-bo,TANG Li-sheng,WU Jun,XING Wei-hong. Application of Ceramic Filtration Membrane in Preparation of Super-pure and Superfine Powder[J]. China Powder Science and Technology, 2005, 11(5): 28-30 |
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| Authors: | BAI Wen-jing XUE Xiao-bo TANG Li-sheng WU Jun XING Wei-hong |
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| Affiliation: | BAI Wenjing1,XUE Xiaobo1,TANG Lisheng1,WU Jun2,XING Weihong2 |
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| Abstract: | In order to prepare the super-pure and superfine ?琢-Al2O3 powder by cross-flow ceramic membrane filtration technology,the optimal pore size,operation parameters such as operation pressure,surface velocity,temperature,concentration of the feed and regenesis methods were studied by experiments.It was found that when the pore size of membrane was 0.2 ?滋m,operation temperature was 70 ℃,operation pressure was 0.1 MPa,surface velocity was 5.0 m/s,the filtration effect was optimal.The superfine powder was recovered completely and the purity of ?琢-Al2O3 powder was up to 99.95% after purified. |
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| Keywords: | ceramic membrane superfine powder purification super-pure ?琢-Al2O3 |
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