本文選題：絡合萃取 + -羥基丙酸��； 參考：《過程工程學報》2017年06期

【摘要】：以三辛胺為萃取劑,分別用正辛醇、二氯甲烷、乙酸乙酯、4-甲基-2-戊酮、正己烷、環(huán)己烷為稀釋劑對3-羥基丙酸稀溶液進行絡合萃取,分析了稀釋劑對萃取的影響,討論了溫度、溶液p H、相比及絡合劑體積分數(shù)對絡合萃取相平衡分配系數(shù)的影響,利用傅立葉紅外光譜儀測定了負載有機相中萃合物的結(jié)構(gòu),對三辛胺絡合萃取3-羥基丙酸的機理進行了探討.結(jié)果表明,正辛醇作稀釋劑萃取效果最好,平衡分配系數(shù)高達4.46.以Na OH溶液進行反萃,3-羥基丙酸的反萃率為99.6%.
[Abstract]:Trioctylamine was used as extractant to extract 3-hydroxypropionic acid dilute solution with n-octanol, dichloromethane, ethyl acetate 4-methyl-2-pentanone, n-hexane and cyclohexane, respectively. The effects of temperature, solution pH, ratio and the volume fraction of complexing agent on the equilibrium partition coefficient of complexation extraction phase were discussed. The structure of the extractant in the loaded organic phase was determined by Fourier transform infrared spectroscopy (FTIR). The mechanism of complex extraction of 3-hydroxypropionic acid by trioctylamine was discussed. The results showed that the extraction efficiency of n-octanol as diluent was the best, and the equilibrium partition coefficient was as high as 4.46. The stripping rate of 3-hydroxypropionic acid from NaOH solution is 99.6.
【作者單位】： 中國科學院過程工程研究所綠色過程與工程重點實驗室;中國科學院大學化學與化工學院;中國科學院青島生物能源與過程研究所;
【基金】：山東泰山學者攀登計劃資助項目(編號:tspd20150210) 國家自然科學基金資助項目(編號:21506221,21676283)
【分類號】：TQ028.32
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本文編號：1785472