| 离心萃取器提取对甲酚的实验和模拟研究 |
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| 引用本文： | 周嘉贞,段五华,许金全,杨义燕.离心萃取器提取对甲酚的实验和模拟研究[J].中国化学工程学报,2007,15(2):209-214. |
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| 作者姓名： | 周嘉贞 段五华 许金全 杨义燕 |
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| 作者单位： | [1]Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 102201, China [2]Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| 摘 要： | In this study, extraction of p-cresol from the simulated wastewater has been studied using centrifugal extractors and QH-1 extractant. The distribution ratio of p-cresol was approximately 308.5 in the QH-1-p-cresol （pH =2.0） system. The extraction stage efficiency of the single-stage centrifugal extractor was higher than 92%, and the extraction rate of the three-stage cascade was higher than 99%. When 15% NaOH was used for the stripping of p-cresol in QH-1 solution, the stripping rate of the three-stage cascade reached 100%. A mathematical model of multistage countercurrent extraction process that considers the phase volume change, extraction stage efficiency, and phase entrainment was used to simulate the extraction of p-cresol using centrifugal extractors. The calculated results using this model were in good agreement with the experimental results.
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| 关 键 词： | 离心提取器 对甲酚 萃取 实验研究 模拟 |
| 收稿时间： | 13 March 2006 |
| 修稿时间： | 2006-03-132006-12-19 |
Experimental and Simulation Study on the Extraction of p-Cresol Using Centrifugal Extractors |
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| Jiazhen ZHOU, Wuhua DUAN, Jinquan XU,Yiyan YANG.Experimental and Simulation Study on the Extraction of p-Cresol Using Centrifugal Extractors[J].Chinese Journal of Chemical Engineering,2007,15(2):209-214. |
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| Authors: | Jiazhen ZHOU Wuhua DUAN Jinquan XU Yiyan YANG |
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| Affiliation: | Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 102201,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 102201,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 102201,China |
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| Abstract: | In this study,extraction of p-cresol from the simulated wastewater has been studied using centrifugal extractors and QH-1 extractant.The distribution ratio of P-cresol was approximately 308.5 in the QH-1-p-cresol (pH=2.0) system.The extraction stage efficiency of the single-stage centrifugal extractor was higher than 92%, and the extraction rate of the three-stage cascade was higher than 99%.When 15% NaOH was used for the stripping of p-cresol in QH-1 solution,the stripping rate of the three-stage cascade reached 100%.A mathematical model of multistage countercurrent extraction process that considers the phase volume change,extraction stage efficiency, and phase entrainment was used to simulate the extraction of p-cresol using centrifugal extractors.The calculated results using this model were in good agreement with the experimental results. |
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| Keywords: | p-cresol extraction QH-1 extractant centrifugal extractor mathematical model |
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