Results 21 to 30 of about 22,970 (312)

An HLD framework for cationic ammonium surfactants

JCIS Open, 2021
The Hydrophilic-Lipophilic Difference (HLD) model can be described by additive contributions accounting for the effect of the oil and surfactant nature, temperature, ionic strength, and so on.
Davide Schirone, Giuseppe Tartaro, Luigi Gentile, Gerardo Palazzo   +3 more
doaj   +1 more source

The influence of surfactants of different classes on the toxicity of diesel fuel for Saccharomycetes [PDF]

E3S Web of Conferences, 2023
The effect on the survival of the yeast S. cerevisiae of mixtures of diesel fuel (summer variety) with four representatives of different classes of surfactants – cationic (cetyltrimethylammonium bromide), anionic (sodium dodecyl sulfate), nonionic (Tween-
Zhdanova Galina, Cherkasov Danila, Vyatchina Olga, Yampolskaya Tatyana, Zhou Qixing, Stom Devard   +5 more
doaj   +1 more source

Effect of Surfactants on Reverse Osmosis Membrane Performance

Separations, 2023
The aim of this study was to evaluate the performance of a reverse osmosis (RO) membrane in surfactant removal using various surfactant model aqueous solutions.
Aymen Halleb, Mitsutoshi Nakajima, Fumio Yokoyama, Marcos Antonio Neves   +3 more
doaj   +1 more source

An Anionic Surfactant on an Anionic Substrate: Monovalent Cation Binding

Langmuir, 2017
Neutron reflectometry has been used to study the adsorption of the anionic surfactant bis(2-ethylhexyl) sulfosuccinate cesium salt on the anionic surface of mica. Evidence of significant adsorption is reported. The adsorption is reversible and changes little with pH.
Finian J. Allen, Lucy R. Griffin, Richard M. Alloway, Philipp Gutfreund, Seung Yeon Lee, Chris L. Truscott, Rebecca J. L. Welbourn, Mary H. Wood, Stuart M. Clarke   +8 more
openaire   +3 more sources

Investigation of the anionic-zwitterionic and anionic-nonionic surfactant mixtures on enhanced oil recovery using microfluidic devices

Petroleum Research
Surfactant flooding is one of the widely applied enhanced oil recovery methods. However, the application of a single surfactant is often insufficient to meet the demand for oil recovery.
Yafei Liu, Chenyue Ling, Yixin Luo, Na Liu, Gaoxin Li, Desheng Zhou   +5 more
doaj   +1 more source

Aqueous Properties of Mixed Anionic Gemini Surfactant and Conventional Anionic Surfactant

Journal of Oleo Science, 2002
In order to determine the characteristics of a mixed system of an anionic gemini surfactant with N, N-dialkylamide and carboxylate groups and a conventional anionic surfactant, aqueous solutions of (CH2)2[NCO(C11H23)C2H4CO2Na]2 (212)/sodium dodecanoate (soap) mixture were studied.
TSUBONE, Kazuyuki, TAJIMA, Kazuo
openaire   +2 more sources

Influence of Added Surfactants on the Rheology and Surface Activity of Polymer Solutions

ChemEngineering
Steady-shear rheology and surface activity of surfactant–polymer solutions were investigated experimentally. Four different polymers were studied as follows: cationic hydroxyethyl cellulose, nonionic hydroxyethyl cellulose, nonionic guar gum, and anionic
Rajinder Pal, Chung-Chi Sun
doaj   +1 more source

Inhibition of mild steel corrosion and calcium sulfate formation in highly saline synthetic water by a newly synthesized anionic carboxylated surfactant

Egyptian Journal of Petroleum, 2018
A newly anionic surfactant; namely (2Z,2′Z)-4,4′-(ethane-1,2-diylbis((2-((4-dodecylphenyl)sulfonamido)ethyl)azanedinyl)bis(4-oxobut-2enoate), desined as Tetra-anionic surfactant was synthesized.
A.M. Al-Sabagh, M.A. Migahed, S.A. Sadeek, N.M. El Basiony   +3 more
doaj   +1 more source

Evaluation of the Effect of Surfactants on the Adsorption and Movement of Carbaryl in Soils of Divergent Texture

Adsorption Science & Technology, 2009
The adsorption and movement of carbaryl on soils in surfactant-free and surfactant (cationic, non-ionic, anionic) solutions of different critical micelle concentrations (CMCs) has been studied using batch equilibrium and soil thin layer chromatography ...
Rishi P. Singh, Syed A. Nabi, Sujata Singh   +2 more
doaj   +1 more source

Green Lignosulphonate as co-surfactant for wettability alteration

Petroleum Research, 2020
Surfactant flooding is one of the common tertiary method to recover remaining oil in the reservoir, by reducing the interfacial tension (IFT) between two immiscible fluids nevertheless, current surfactant forms emulsion and difficult to achieve ultra-low
Zhe Qin Lim, Nabilla Afzan Abdul Aziz, Ahmad Kamal Idris, Nur Asyraf Md Akhir   +3 more
doaj   +1 more source