Cloud-point extraction of phenanthrene by nonionic surfactants

Li, Jing-Liang and Chen, Bing-Hung 2002, Cloud-point extraction of phenanthrene by nonionic surfactants, Journal of the Chinese institute of chemical engineers, vol. 33, no. 6, pp. 581-589.

Attached Files
Name Description MIMEType Size Downloads

Title Cloud-point extraction of phenanthrene by nonionic surfactants
Author(s) Li, Jing-LiangORCID iD for Li, Jing-Liang
Chen, Bing-Hung
Journal name Journal of the Chinese institute of chemical engineers
Volume number 33
Issue number 6
Start page 581
End page 589
Total pages 9
Publisher Taiwan Institute of Chemical Engineering
Place of publication Hsinchu City. Taiwan
Publication date 2002-11
ISSN 0368-1653
Keyword(s) polycyclic aromatic hydrocarbon
cloud point extraction
nonionic surfactant
HPLC analysis
Summary Extraction and preconcentration of the model polycyclic aromatic hydrocarbon (PAH), phenanthrene, in aqueous solutions by two different kinds of nonionic ethoxylated alcohols, Tergitol 15-S-7 and Neodol 25-7, as extractants was studied at ambient temperature (22°C). Both surfactants have almost the same numbers of hydrocarbons and ethylene-oxide (EO) units, but differ in the location of the alcohols. Neodol 25-7 is a primary alcohol, while Tergitol 15-S-7 is a secondary one. The extraction process is based on the clouding phenomena of these two nonionic surfactants. Addition of sodium sulfate or sodium phosphate could decrease the cloud point temperatures of the surfactant solutions below the ambient temperatures, so that the cloud-point extraction process could be facilitated. Increasing the salt concentration or decreasing the surfactant concentration could improve the preconcentration factor, which is attributable to the decrease in the volume of surfactant-rich phase. Consequently, the recovery efficiency higher than 96% was achieved for phenanthrene in aqueous solution.
Language eng
Field of Research 090703 Environmental Technologies
090409 Wastewater Treatment Processes
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1.1 Refereed article in a scholarly journal
Persistent URL

Document type: Journal Article
Collections: Institute for Frontier Materials
GTP Research
Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 2 times in TR Web of Science
Scopus Citation Count Cited 2 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 462 Abstract Views, 1 File Downloads  -  Detailed Statistics
Created: Mon, 24 Oct 2011, 14:17:19 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact