以二(2-乙基己基)磷酸含浸樹脂吸附鉻(III)離子之平衡研究

湯承憲

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以二(2-乙基己基)磷酸含浸樹脂吸附鉻(III)離子之平衡研究

A Study on the Adsorption Equilibria of Chromium(III) Ions by Di(2-ethylhexyl) Phosphoric Acid-Extractant-impregnated Resin

湯承憲 , Masters　　Advisor：蔡德華　　

繁體中文

萃取；吸附；二(2-乙基己基)磷酸； Amberlite XAD-4 ；萃取劑含浸樹脂；鉻離子； Extraction ； Sorption ； Di(2-ethylhexyl) Phosphoric Acid ； Amberlite XAD-4 ； Extractant -impregnated Resin ； Chromium Ions

Abstract │ Reference (45) │ Times Cited (14) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

In this paper, we used the ethylene glycol monobutyl ether, EGMBE as the modifier, dichloromethane as the diluents, and D2EHPA as the extractant All of them were rendered into the extractant-impregnated resin, EIR, we examined the effects of various parameter, such as the initial concentration of the metal ions, the amount of EIR and the operating temperature. We investigated the adsorption of metal ions after reaching equilibrium between Chromium nitrate aqueous solutions and EIR.
We also tried to fit the experiments data base on available models, we also used Amberlite XAD-4 as a support in the absence of extractant and modifier, investigate its Chromium ion adsorption capability. Data from blank experiments revealed that Amberlite XAD-4 shows no significant adsorption capability on Chromium ions and acted mainly as a support.
Based on the results, it can be concluded that the distribution ratio of Chromium ion increased with increasing in both amount of D2EHPA and pH value of aqueous solutions, but decreased while the initial concentration of Chromium ion increased. The results also reveal the adsorption mode of extract Chromium ions can be described by the Freundlich isotherm. In this system adsorption energy ( Ea ) is 18.41kJ/mol.

Reference ( 45 ) 〈TOP〉

1. 王雅琪，二(2-乙基己基)磷酸含浸樹脂自水溶液中吸附錳離子之動力學研究，國立臺北科技大學化工所碩士論文(2005)
連結：
3. H. W. Kauczer, and A. Meyer, “Structure and properties of Levextrel resins”, Hydrometallurgy, 3, 65-73 ( 1978)
連結：
9. 林素霞，以中空纖維膜接觸器同時萃取金屬陰陽離子之效率與質傳分析，私立元智大學博士論文(2003)
連結：
10. 吳榮宗，以溶劑萃取自氯微素模擬製程廢水中回收醋酸之研究，私立元智大學化學工程學系碩士論文(1998)
連結：
13. 蔡德華，洪啟豪，陳兮婷，黃善雯，翁郁婷，A study on the Extraction and Separation of Heavy Metal by Using Ion Exchanger，國立臺北科技大學化學工程系. 第二十三屆輸送現象與其應用研討會，December 7, 415-418(2001).
連結：

Times Cited (14) 〈TOP〉

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