| 正交试验对沸石合成条件的优化 |
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| 引用本文： | 范春辉,张颖超.正交试验对沸石合成条件的优化[J].西北轻工业学院学报,2012(3):26-29. |
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| 作者姓名： | 范春辉 张颖超 |
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| 作者单位： | 陕西科技大学资源与环境学院 |
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| 基金项目： | 陕西科技大学博士科研启动基金(BJ10-20) |
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| 摘 要： | 以粉煤灰为原料,通过单因素试验研究NaOH浓度、反应温度、液固比对沸石合成产物的影响,借助正交试验考察影响因素的主次顺序,寻求最优条件组合,沸石的品质以阳离子交换量(CEC值)定性衡量.单因素试验结果表明,沸石合成的较优条件为NaOH浓度2mol/L、反应温度150℃、液固比10mL/g.L16(45)型正交试验表明,各因素的主次顺序为NaOH浓度、反应温度、液固比,较优组合水平为A2B2C2,即NaOH浓度2mol/L、反应温度150℃、液固比10mL/g,此条件下合成沸石的CEC均值为144mmol/100g.
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| 关 键 词： | 正交试验 沸石 合成条件 CEC |
Study on the optimal conditions on zeolite synthesis process with orthogonal experiment |
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| FAN Chun-hui,ZHANG Ying-chao.Study on the optimal conditions on zeolite synthesis process with orthogonal experiment[J].Journal of Northwest University of Light Industry,2012(3):26-29. |
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| Authors: | FAN Chun-hui ZHANG Ying-chao |
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| Affiliation: | (College of Resource & Environment,Shaanxi University of Science & Technology,Xi′an 710021,China) |
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| Abstract: | Fly ash was used as raw material for zeolite synthesis,the effects of NaOH concentration,temperature and liquid/solid ratio on zeolite CEC values were analyzed,and the optimal condition was revealed by orthogonal experiment.The single factor experiment showed the acceptable conditions were attained at 150 ℃ with NaOH concentration of 2 mol/L and liquid/solid ratio of 10 mL/g.The achievement of L16(45) orthogonal experiment indicated the most important factor was NaOH concentration followed by temperature,the optimal experimental group was of NaOH concentration 2 mol/L and liquid/solid ratio 10 mL/g at 150 ℃ with attained CEC value of 144 mmol/100 g. |
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| Keywords: | orthogonal experiment zeolite synthesis conditions CEC |
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