FORMING MECHANISM OF THE THIRD PHASE IN THE PENCILLIN EXTRACTION SYSTEMS

陈继; 王斌; 王靖; 梁向峰; 刘会洲

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FORMING MECHANISM OF THE THIRD PHASE IN THE PENCILLIN EXTRACTION SYSTEMS

更新时间：2025-12-16

- FORMING MECHANISM OF THE THIRD PHASE IN THE PENCILLIN EXTRACTION SYSTEMS
- CIESC Journal Issue S1, (2000)
- 作者机构：
  
  中国科学院化工冶金研究所分离科学与工程青年实验室、生化工程国家重点实验室! 北京100080,中国科学院化工冶金研究所分离科学与工程青年实验室、生化工程国家重点实验室! 北京100080,中国科学院化工冶金研究所分离科学与工程青年实验室、生化工程国家重点实验室,北京,100080
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q028
- Online First：30 December 2000，
  
  Published：30 December 2000
- 稿件说明：
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陈继, 王斌, 王靖, et al. FORMING MECHANISM OF THE THIRD PHASE IN THE PENCILLIN EXTRACTION SYSTEMS[J]. CIESC Journal, 2000, (S1).
DOI：

陈继, 王斌, 王靖, et al. FORMING MECHANISM OF THE THIRD PHASE IN THE PENCILLIN EXTRACTION SYSTEMS[J]. CIESC Journal, 2000, (S1). DOI：

摘要

在青霉素／ＣＴＡＢ／水／乙酸丁酯的模拟萃取体系中，当青霉素的浓度为０．０４２ｍｏｌ／Ｌ、ＣＴＡＢ浓度小于０．０５４ｍｏｌ／Ｌ时体系有第三相产生：当ＣＴＡＢ浓度大于０．０５４ｍｏｌ／Ｌ时第三相消失，体系恢复为两相，此时下相有严重的乳光现象。第三相表面张力、粘度受ＣＴＡＢ和青霉素的浓度变化影响不大，而第三相的电导值受ＣＴＡＢ的浓度影响较大，组分分析证明第三相有大量的水和乙酸丁酯互溶，其中青霉素与ＣＴＡＢ的浓度比接近１：１。第三相通过冷冻蚀刻透射电镜观察，发现比较典型的片层状结构。对第三相的形成原因做了部分解释。

Abstract

In the extraction systems of Penicillin G model with aqueous solutions of cetyltrimetyl ammonium bromide (CTAB) as aqueous phase and butyl acetate as organic phase

third phase was found at certain conditions. The third was phase formed at the concentration of CTAB lower 0.054 mol/L and at the fixed concentration of Pencillin G 0.042mol/L. The surface tension and viscosity was affected little by increasing the concentration change of CTAB and Pencillin G. Conductivity was affected by increasing the concentration change of CTAB. It was proven that the water and BA were dissloved each other in the third phase. By the component analysis method

the concentration ratio of CTAB and Pencillin G was 1. The third phase was lamellar structure by the observation of transmission electronic microscope (TEM).

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