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Recovery of cephalexin by liqiud membrane

Recovery of cephalexin by liqiud membrane. 报告人：申龙. 导师：高瑞昶. Cephalexin. C16H17N3O4S. first-generation cephalosporin antibiotic introduced in 1967. US$255 million in sales. Chemical enzymitic. Advantages: both extractionand stripping can be carried out in a single step

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Recovery of cephalexin by liqiud membrane

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  1. Recovery of cephalexin by liqiud membrane 报告人：申龙 导师：高瑞昶

  2. Cephalexin C16H17N3O4S first-generation cephalosporin antibiotic introduced in 1967 US$255 million in sales Chemical enzymitic

  3. Advantages: both extractionand stripping can be carried out in a single step high transmission rate, less separation series lower organic membrane solution loss, uphill transport liquid membrane extraction Liquid membrane is a prospective separation system that has been studied intensively by a host of researchers ever since its foundation by Li. Although it has not featured significantly in industrial application, its efficiency and economic advantages have designated it as an optimal solution for a number of important problems in science and technology. Liquid membrane separation technology, compared withand thetraditional solvent extraction, has the following several characteristic:

  4. mechanism permselectivity different solubility or diffusion velocity，selective permeable Facilitated transport add some specific reagents speed up the transmission rate high selectivity liquid membrane extraction

  5. Basic configuration liquid membrane extraction Bulk Liquid MembraneBLM

  6. Emulsion Liquid Membrane ELM liquid membrane extraction

  7. Supported Liquid MembraneSLM liquid membrane extraction

  8. Ceph−(f)+ Q+Cl−(o) ⇔Q+Ceph−(o)+ Cl−(f) Q+Ceph−(o)+ Cl−(s)⇔ Ceph−(s)+ Q+Cl−(o) liquid membrane extraction extraction and stripping reactions the issue ofinstability not suited for large-scale industrialization

  9. lower organic membrane solution loss higher flux higher selectivity increased recovery liquid membrane extraction Supported Liquid Membrane with strip dispersion

  10. 谢谢观赏 谢谢观赏

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