Results 21 to 30 of about 979,553 (324)

MODIFIED KAOLIN WITH CATIONIC SURFACTANT FOR GIBBERELLIC ACID CARRIER MATERIALS

Indonesian Journal of Chemistry, 2011
Synthesis of surfactant modified kaolin from natural kaolin from Tatakan, Tapin, South Kalimantan and its application for carrier material of gibberellic acid have been conducted.
Sunardi Sunardi, Utami Irawati, Yateman Arryanto, Sutarno Sutarno   +3 more
doaj   +1 more source

Wastewater Treatment Using Modified Alumina

Tikrit Journal of Engineering Sciences, 2006
Alumina surface was modified by adsorption of an anionic surfactant, sodium sulfate (S.S). Typical S-shaped isotherm of surfactant on alumina was observed.
Saba A. Ghani, Ahmed D. Wiheeb
doaj   +1 more source

Kinetics of non-ionic surfactant adsorption at a fluid-fluid interface from a micellar solution [PDF]

, 2005
The kinetics of non-ionic surfactant adsorption at a fluid-fluid interface from a micellar solution is considered theoretically. Our model takes into account the effect of micelle relaxation on the diffusion of the free surfactant molecules.
Dukin S. S., Hervé Mohrbach, Noskov B. A.   +2 more
core   +1 more source

Fluorinated Surfactant Adsorption on Mineral Surfaces: Implications for PFAS Fate and Transport in the Environment

Surfaces, 2020
Fluorinated surfactants, which fall under the class of per- and polyfluoroalkyl substances (PFAS), are amphiphilic molecules that comprise hydrophobic fluorocarbon chains and hydrophilic head-groups.
A. V. Alves, M. Tsianou, P. Alexandridis
semanticscholar   +1 more source

Adsorption of anionic surfactant on sandstone reservoir containing clay minerals and its effect on wettability alteration

Energy Reports, 2022
Previous researches have shown that different anionic surfactants have different adsorption rates on mineral clays. Furthermore, many literatures have presented that anionic surfactants have little effect in changing the wettability of rocks containing ...
Ira Herawati, Pudji Permadi, Achmad Rochliadi, Taufan Marhaendrajana   +3 more
doaj   +1 more source

A model study of enhanced oil recovery by flooding with aqueous surfactant solution and comparison with theory [PDF]

, 2015
With the aim of elucidating the details of enhanced oil recovery by surfactant solution flooding, we have determined the detailed behavior of model systems consisting of a packed column of calcium carbonate particles as the porous rock, n-decane as the ...
Clarke, Andrew, Fletcher, Paul D. I., Howe, Andrew M., Savory, Luke D., Woods, Freya   +4 more
core   +2 more sources

Hansen solubility parameters obtained via molecular dynamics simulations as a route to predict siloxane surfactant adsorption.

Journal of Colloid and Interface Science, 2020
HYPOTHESIS The Hansen Solubility Parameters (HSP) derived from Molecular Dynamics (MD) simulations can be used as a fast approach to predict surfactants adsorption on a solid surface.
Daniël P. Faasen, Ahmed Jarray, H. Zandvliet, E. S. Kooij, W. Kwieciński   +4 more
semanticscholar   +1 more source

Mixed adsorption and surface tension prediction of nonideal ternary surfactant systems [PDF]

, 2005
To deal with the mixed adsorption of nonideal ternary surfactant systems, the regular solution approximation for nonideal binary surfactant systems is extended and a pseudo-binary system treatment is also proposed.
Ben, Corkill, Cui, Cui, Cui, Graciaa, Holland, Holland, Hua, Isikawa, Isikawa, J. P. Canselier, Lucassen-Reynders, Matsuki, Nguyen, Puvvada, Rodenas, Rosen, Rosen, Sarmoria, Scamehorn, Shiloach, Shiloach, X.-Q. Zhou, Yu, Z.-G. Cui, Zimmerman   +26 more
core   +3 more sources

Kinetics of Surfactant Adsorption at Fluid-Fluid Interfaces [PDF]

, 1996
We present a theory for the kinetics of surfactant adsorption at the interface between an aqueous solution and another fluid (air, oil) phase. The model relies on a free-energy formulation.
Andelman, D., Diamant, H.
core   +1 more source

Adsorption of Aerosol-OT on Sand and Shale at High Sodium Salt Concentration

Chemical Engineering Transactions, 2017
Surfactant flooding is a method for additional recovery of oil from partially depleted reservoirs by changing the interfacial tension. During the application of surfactant into a reservoir, a certain loss in the high equivalent weight fraction occurs ...
A.H. Abbas, M.Z. Jaafar, A.R. Ismail, W.R. Wan Sulaiman   +3 more
doaj   +1 more source