| Application of Block Copolymer in Three-Liquid-Phase Extraction System |
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| 作者姓名： | 申淑锋 常志东 孙兴华 胡欣 刘会洲 |
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| 作者单位： | Graduate School of the Chinese Academy of Sciences Beijing 100080 China，Laboratory of Separation Science and Engineering State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences P. O. Box 353 Beijing 100080 China，Graduate School of the Chinese Academy of Sciences Beijing 100080 China，Graduate School of the Chinese Academy of Sciences Beijing 100080 China，Laboratory of Separation Science and Engineering State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences P. O. Box 353 Beijing 100080 China |
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| 基金项目： | Innovative Research Group Science Fund (No. 0221603), the National Natural Science Foundation (No. 20406021) and he National Natural Science Key Foundation (No. 20236050) of China |
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| 摘 要： | Introduction Polyethylene oxide-polypropylene oxide-polyethylene ox-ide (PEO-PPO-PEO) block copolymers are non-ionic surfactants and include hydrophilic PEO and hydro-phobic PPO segments. Due to the presence of PPO central block, PEO-PPO-PEO copolymers ha…
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| 关 键 词： | 液相分离 嵌段共聚物 青霉素 回收 |
| 收稿时间： | 2005-10-09 |
| 修稿时间： | 2005-10-09 |
Application of Block Copolymer in Three-Liquid-Phase Extraction System |
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| Shufeng Shen, &#x;Ý , Zhidong Chang, ýì, Xinghua Sun, &#x;, Xin Hu, ,Huizhou Liu, &#x;ú
.Application of Block Copolymer in Three-Liquid-Phase Extraction System[J].Tsinghua Science and Technology,2006,11(2):248-251. |
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| Authors: | Shufeng Shen &#x;Ý Zhidong Chang ýì Xinghua Sun &#x; Xin Hu Huizhou Liu &#x;ú
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| Institution: | aGraduate School of the Chinese Academy of Sciences, Beijing 100080, China;bLaboratory of Separation Science and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P. O. Box 353, Beijing 100080, China |
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| Abstract: | A novel three-liquid-phase extraction system (TES) composed of butyl acetate, block copolymer polyethylene oxide-polypropylene oxide-polyethylene oxide and ammonium sulphate aqueous solution (NH4)2SO4] as top, middle, and bottom phase, respectively, has been developed. The copolymer recycling and partitioning behavior of penicillin V has been studied in this system. Results show that the copolymer could be purified and recycled and penicillin V of the filtrated ferment broth could be partitioned unevenly among the phases and purified in the top phase of this TES. About 90 wt.% of penicillin V could be distrib-uted into the top phase around pH 2.5 and only less than 0.1 wt.% left in the bottom phase. |
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| Keywords: | three-liquid-phase extraction system block copolymer phenoxymethyl penicillin recovery |
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