| SIMULTANEOUS ION-EXCHANGE AND ADSORPTION OF LACTIC ACID ON D354 RESIN |
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| 作者姓名： | 许丽华 栾善东 郑重鸣 丁新华 岑沛霖 |
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| 作者单位： | Xu Lihua Luan Shandong
Zheng Zhongming Ding Xinhua
and Cen Peilin
Department of Chemical Engineering，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | Supported by the National Natural Science Foundation of China |
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| 摘 要： | From a number of ion-exchange resins and adsorbents,a macro-pore weak-base type anionion-exchange resin,D354,was selected for the separation of lactic acid.Experimental data showedthat simultaneous ion-exchange and physical adsorption existed in the lactic acid-D354 system.Amathematical model was suggested to simulate the experimental data.Also,the effects of inorganicsalts on the ion-exchange.equilibrium were studied.The difference in ion-exchange equilibrium be-tween DL-and L-lactic acid was observed.
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| 关 键 词： | lon-exchange adsorption lactic acid resin isotherm |
| 收稿时间： | 1993-11-24 |
| 修稿时间： | 1994-5-3
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SIMULTANEOUS ION-EXCHANGE AND ADSORPTION OF LACTIC ACID ON D354 RESIN |
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| XU Lihua,LUAN Shandong,ZHENG Zhongming,DING Xinhua,CEN Peilin.SIMULTANEOUS ION-EXCHANGE AND ADSORPTION OF LACTIC ACID ON D354 RESIN[J].Chinese Journal of Chemical Engineering,1995,3(2):82-87. |
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| Authors: | XU Lihua LUAN Shandong ZHENG Zhongming DING Xinhua CEN Peilin |
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| Affiliation: | Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | From a number of ion-exchange resins and adsorbents, a macro-pore weak-base type anion ion-exchange resin, D354, was selected for the separation of lactic acid. Experimental data showed that simultaneous ion-exchange and physical adsorption existed in the lactic acid-D354 system. A mathematical model was suggested to simulate the experimental data. Also, the effects of inorganic salts on the ion-exchange .equilibrium were studied. The difference in ion-exchange equilibrium between DL-and L-lactic acid was observed. |
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| Keywords: | lon-exchange adsorption lactic acid resin isotherm |
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