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Synthesis and Interfacial Properties of Dialkylbenzenesulfonates for Producting Low Interfacial Tensions

  • Y.-X. Wang , Y. Zhao , Q. Hou , J. Qi and Z.-S. Li
Published/Copyright: March 30, 2013
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Tenside Surfactants Detergents
From the journal Tenside Surfactants Detergents Volume 45 Issue 1

Abstract

A new method of synthesis a series of pure dialkylbenzene sulfonates is described. The benzene ring carries a major alkyl substituent, consisting of a linear chain of sixteen carbon atoms long, and one additional methyl group. Products are charactered by EI-MS and 1H NMR. Experimental investigations have been conducted to explore the interfacial tension behavior of crude oil with dialkylbenzenesulfonates. The effects of various parameters such as surfactant concentration, salinity concentration on the interfacial tension of crude oil-water were investigated in detail. The transient low interfacial tensions in crude oil/alkali system were caused by the synergistic effects between surfactant and the active species generated at interface, but surfactant molecules plays the dominant role at equilibrium.

Kurzfassung

Es wird eine neue Methode zur Synthese einer Serie von reinen Dialkylbenzensulfonaten beschrieben. Der Benzenring trägt einen Hauptalkylsubstituenten, der aus einer linearen Kette mit sechszehn Kohlenstoffatomen und einer zusätzlichen Methylgruppe besteht. Die Produkte wurden mittels EI-MS and 1H-NMR charakterisiert. Die experimentellen Untersuchungen wurden durchgeführt um das Grenzflächenspannungsverhalten von Erdöl mit Dialkylbenzensulfonaten zu erforschen. Die Einflüsse verschiedener Parameter, wie Tensidkonzentration, Salzkonzentration und Grenzflächenspannung von Erdöl-Wasser wurden eingehend untersucht. Die transient niedrigen Grenzflächenspannungen im Erdöl/Alkali-System wurden durch synergistische Effekte zwichen Tensid und an der Grenzfläche generierte aktive Spezies zurückgeführt, wobei aber im Geichgewicht die Tensidmoleküle den dominanten Anteil haben.

Key words:: Enhanced oil recovery; dialkylbenzenesulfonates; interfacial tension
Stichwörter:: Verbesserte Ölförderung; Dialkylbenzensulfonate; Grenzflächenspannung
∗ Mr Yuanxun Wang, State Key Laboratory of Fine Chemicals, Dalian University of Technology, 158 Zhongshan Road, Dalian 116012, P. R. China, Tel.: +86-4 11-88 99 39 01, Fax: +86-4 11-83 68 32 29. E-mail:

Mr. Yuanxun Wang was born in 1982. He is a master at Dalian University of Technology. His main fields are synthesis and interfacial properties of dialkylbenzenesulfonates surfactant.

Dr. Yu Zhao was born in 1978. He is a teacher at Ocean university of China. His main field of research is synthesis and investigation of surfactants using for water waste treatment.

Mr. Qijun Hou was born in 1984. He is a master student at Dalian University of Technology. His main fields of research are catalysis and synthesis of surfactants.

Ms. Jing Qi was born in 1985. She is a master student at Dalian University of Technology. Her fields are the synthesis and separation of petroleum sulfonates.

Prof. Zongshi Li was born in 1936. He obtained a BD form Dalian University of Technology in 1960. Since then he has been working in the department of fine chemicals at Dalian University of Technology. His focus is on the synthesis of surfactants and their applications.

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Received: 2007-08-03
Published Online: 2013-03-30
Published in Print: 2008-01-01

© 2008, Carl Hanser Publisher, Munich

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https://doi.org/10.3139/113.100360
Keywords for this article
Enhanced oil recovery; dialkylbenzenesulfonates; interfacial tension

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Application
  6. Hydrolysis of α, β-Layered Sodium Disilicate in Ions Binding Process
  7. Textile Softeners on Cotton Dyed with Direct Dyes: Reflectance and Fastness Assessments
  8. Environmental Chemistry
  9. Interaction between Lemna Minor and Anionic Surfactants
  10. Physical Chemistry
  11. The Prediction of Microemulsion Properties: Molecular Theory and the Lattice Fluid Self-Consistent Field Theory
  12. Synthesis
  13. Synthesis and Interfacial Properties of Dialkylbenzenesulfonates for Producting Low Interfacial Tensions
  14. GDCh-News
  15. Third European Detergents Conference Report
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