Investigation of the impact of organic solvent type and solution pH on the extraction efficiency of naphthenic acids from oil sands process-affected water
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- 作者：Rongfu Huanga ; Kerry N. McPhedranb ; Nian Suna ; Pamela Chelme-Ayalaa ; Mohamed Gamal El-Dina ; mgamalel-din@ualberta.ca" class="auth_mail" title="E-mail the corresponding author
- 关键词：Oil sands process-affected water (OSPW) ; Naphthenic acids ; Ultra-performance liquid chromatography time-of-flight mass spectrometry (UPLC-TOFMS) ; Liquid&ndash ; liquid extraction
- 刊名：Chemosphere
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：146
- 期：Complete
- 页码：472-477
- 全文大小：1093 K
文摘
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Liquid–liquid extraction of OSPW NAs using six solvents at three pHs (2.0, 8.5, 12.0).
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n-pentane, n-hexane, cyclohexane, dichloromethane, ethyl ether, and ethyl acetate.
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Extractability of molecules depends on polarity and ions on water solubility.
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Ethyl ether is an alternative to dichloromethane for extraction of Ox–NAs (2 ≤ x ≤ 4).
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Dichloromethane use can be discontinued to limit human health risk.