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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 33, 2010 - Issue 1
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Original Articles

Studies on the Correlation Between Dynamic Interfacial Tension Behaviors and the Composition of Petroleum Sulfonates

J. Qi The State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P.R. China
,
J. Luan Institute of Chemicals, Qingdao University, Qidao, P.R. China
,
Q. Hou The State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P.R. China
,
W. Qiao The State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P.R. China
&
Z. Li The State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P.R. China
Pages 89-99 | Received 20 Feb 2009, Accepted 13 Apr 2009, Published online: 05 Oct 2010
 
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Abstract

Three fractions with different average molecular mass were isolated from petroleum sulfonates by Soxhlet extraction. The molecular mass distribution was examined by electrospry ionization-mass spectra. The dynamic interfacial tension behaviors of the petroleum sulfonates and three fractions were investigated respectively. The results indicated that fraction extracted with benzene produced a greater decrease of the dynamic interfacial tension than other fractions, so the former plays a vital role in reducing interfacial tension. But petroleum sulfonates before separation exhibit better interfacial activity than all the fractions, which indicates that there exists obvious synergism between these different fractions.

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