1987 Fiscal Year Final Research Report Summary
Adsorptive Separation of Bioactive Substances by Means of Desorption by Supercritical Gas
| Project/Area Number |
61470112
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
化学工学
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| Research Institution | Institute of Industrial Science, University of Tokyo |
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Principal Investigator |
SUZUKI Motoyuki Institute of Industrial Science, University of Tokyo, 生産技術研究所第4部, 教授 (10011040)
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| Project Period (FY) |
1986 – 1987
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| Keywords | Supercritical Fluid / Adsorption / Desorption / Supercritical Fluid Extraction / 吸着分離 / 生理活性物質 |
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| Research Abstract |
For the purpose of enrichment separation of temperature sensitive substances such as bioactive chemicals, supercritical extraction by using supercritical carbon dioxide seems attractive since supercritical condition is achieved around room temperature. A problem often arises regarding selective separation of specific chemicals from multicomponent mixtures since selectivity of extractive separation is determined solely from the ratio of solubilities of the chemicals in water and supercritical carbon dioxide.
When adsorption is hybridized in the process, selection of adsorbents may add another possibility to increase selectivity of separation. Then the chemical in concern mayb be adsorbed on an adsorbent and the following desorption by supercritical carbon dioxide achiieves an ideal enrichment separation.
Desorption studies of many different organics adsorbed on activated carbon as well as organics adsorbed on organic resin were carried out to clarify easiness of desorption from the standpoint of combination of organics and adsorbents.
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