| 用连续逆流式超临界双塔浓缩和精制维生素K1 |
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| 引用本文： | 李雪,金君素,张泽廷,于恩平,吴浩.用连续逆流式超临界双塔浓缩和精制维生素K1[J].北京化工大学学报(自然科学版),2005,32(6):9-11. |
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| 作者姓名： | 李雪 金君素 张泽廷 于恩平 吴浩 |
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| 作者单位： | 北京化工大学化学工程学院， 北京 100029 |
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| 摘 要： | 文中研究了用连续逆流式超临界双塔浓缩和精制维生素K1的工艺方法。第一塔压力18～24MPa，温度35～50℃；第二塔压力8～11MPa，温度40～60℃；CO2与原料质量流量比由37.5到70。产品为清亮黄色油状液体，维生素K1的质量分数可达97.24%。
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| 关 键 词： | 连续逆流 维生素K1 超临界二氧化碳 连续逆流 维生素K1 超临界二氧化碳 |
| 收稿时间： | 2004-12-27 |
| 修稿时间： | 2004年12月27日 |
Concentration of vitamin K1 by supercritical carbon dioxide with two continuous countercurrent columns |
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| LI Xue,JIN Jun-su,ZHANG Ze-ting,YU En-ping,WU Hao.Concentration of vitamin K1 by supercritical carbon dioxide with two continuous countercurrent columns[J].Journal of Beijing University of Chemical Technology,2005,32(6):9-11. |
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| Authors: | LI Xue JIN Jun-su ZHANG Ze-ting YU En-ping WU Hao |
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| Institution: | College of Chemical Engineering, Beijing University of Chemical Technolo gy, Beijing 100029, China |
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| Abstract: | Concentration of vitamin K1 by supercritical carbon dioxide with two continuo us countercurrent columns was performed. The pressure in the first column range d from 18MPa to 24MPa, and the temperature ranged from 35℃ to 50?℃. The range of the pressure in the second column was from 8MPa to 11MPa, and the temperature was from 40℃ to 60℃. The CO2/material mass flow rate ratio ranged from 37.5 to 70. The product obtained was a transparent yellow oil and contained 97.24% vitamin K1. |
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| Keywords: | continuous countercurrent vitamin K1 supercritical CO2 |
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