CIESC Journal

• Volume 3 • 上一篇    下一篇

SIMULTANEOUS ION-EXCHANGE AND ADSORPTION OF LACTIC ACID ON D354 RESIN

许丽华; 栾善东; 郑重鸣; 丁新华; 岑沛霖   

  1. Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:1993-11-24 修回日期:1994-05-03 出版日期:1995-06-28 发布日期:1995-06-28
  • 通讯作者: 许丽华

SIMULTANEOUS ION-EXCHANGE AND ADSORPTION OF LACTIC ACID ON D354 RESIN

XU Lihua; LUAN Shandong; ZHENG Zhongming; DING Xinhua; CEN Peilin   

  1. Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:1993-11-24 Revised:1994-05-03 Online:1995-06-28 Published:1995-06-28
  • Contact: XU Lihua

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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.

关键词: lon-exchange;adsorption;lactic acid;resin;isotherm

Abstract: 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.

Key words: lon-exchange, adsorption, lactic acid, resin, isotherm

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