| 复合溶剂萃取氨基酸的初步研究 |
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| 引用本文： | 左耀太.复合溶剂萃取氨基酸的初步研究[J].内蒙古环境科学,2004,16(2):10-13. |
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| 作者姓名： | 左耀太 |
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| 作者单位： | 山西省科林环境保护技术中心,太原030009 |
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| 摘 要： | 以Lewis酸性萃取剂和Lewis碱性萃取剂组成的复合萃取剂(正辛烷为稀释剂)萃取L-苯丙氨酸为研究对象，研究了Lewis酸／Lewis碱配对以及pH值对萃取分配系数的影响。N263与辛酸、月桂酸等组成的复合溶剂萃取规律比较复杂。红外谱图研究表明，己酸与TOA配对组成的复合溶剂(正辛烷为稀释剂)为离子对溶剂、己酸、辛酸、月桂酸及P204分别与TOA配对组成的复合溶剂萃取L-苯丙氨酸，在低pH条件下为阳离子交换反应，在高pH条件下为阴离子交换反应。
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| 关 键 词： | 复合溶剂 氨基酸 萃取 平衡常数 |
| 文章编号： | 1007-0370(2004)02-0010-04 |
EXTRACTION OF AMINO ACID WITH MIXED SOLVENT |
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| Zuo Yao tai.EXTRACTION OF AMINO ACID WITH MIXED SOLVENT[J].Inner Mongolia Environmental Protection,2004,16(2):10-13. |
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| Authors: | Zuo Yao tai |
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| Abstract: | A series of extraction equilibrium experiments for L-phenylalanine (L-phc) with the mixed organic solvent was carried out. The mixed solvent consisted of a kind of Lewis acid and a kind of Lewis base dissolved in n-octane. The extraction mechanisms of L-phc by the mixed solvent containing N263/octanoic-acid or N263/dodecanoic-acid were complicated. TOA reacted with hexanoic acid and a kind of organic salt (C8H17)3NH+-OOCC5H11 formed in the organic phase, as was demonstrated by infrared spectrograms. When pHpH0,l,-phe was extracted in the anion-exchange mechanism. |
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| Keywords: | mixed solvent amino acid extraction equilibrium constant |
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