RETRACTED:Efficiency of Amphoteric Surfactants as Flow Improvers and Pour Point Depressants

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This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused.

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The authors declare no conflicts of interest.

References

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[3] N. El Mehbad,“The Development and Application of Ester for Lubricating Oil by Phase Transfer Catalysts,”19th International Colloquium, 21-23 January 2013, Germany.
[4] T. T. Khidr, E. M. S. Azzam, S. Mutwaa and A. M. A. Omar,“Study of Some Anionic Surfactants as Pour Point Depressant Additives for Wax Gas Oil,”Industrial Lubrication and Tribology, Vol. 59, No. 2, 2007, pp. 64-68. http://dx.doi.org/10.1108/00368790710731855
[5] T. T. Khidr and A. M. A. Omar,“Anionic/Nonionic Mixture of Surfactants for Pour Point Depression of Gas Oil Egyptian,”Journal of Petroleum, Vol. 12, 2003, pp. 21-26.
[6] T. T. Khidr, D. Ismail and A. M. A. Omar, “Improving the Flow Properties of n-Paraffin Gas Oil by Cationic and Non-Ionic Surfactants,” Journal of Faculty of Education, Vol. 25, 2000, pp. 121-135.
[7] A. M. A. Omar, “Separation of Emulsifiable Oil from Solution by Surface Tension Control,” Adsorption Science and Technology, Vol. 19, No. 1, 2001, pp. 91-100. http://dx.doi.org/10.1260/0263617011494006
[8] A. M. A. Omar, Journal of Petroleum Science and Technology, Vol. 19, No. 7-8, 2001, pp. 11-21.

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