scholarly journals  Influence of the isolation method of the soapstockfatty component on its characteristics

2016 ◽  
Vol 61 (No. 3) ◽  
pp. 111-115 ◽  
Author(s):  
Y.I. Prokof ev ◽  
T.N. Poyarkova ◽  
A.R. Bykov ◽  
A.S. Shestakov ◽  
V.A. Kuznetsov ◽  
...  
Keyword(s):  
Nonionic Surfactants ◽  
Isopropyl Alcohol ◽  
Waste Product ◽  
Common Salt ◽  
Fusel Oil ◽  
Hydrolysis Method ◽  
Langmuir Film Balance ◽  
Surface Active Properties ◽  
Surface Active ◽  
Fatty Component

From soapstock, which is a waste product of sunflower oil production, the fatty component was isolated using isopropyl alcohol, toluene, fusel oil and a mixture of common salt and nonionic surfactants. With the help of the Langmuir film balance the molecular areas of isolated fats were found and the degree of hydrophobization in comparison with the original soapstock was evaluated. It was found that the strongest compression of the monolayer is observed when using fusel oil. The surface active properties of emulsifiers, synthesized by alkaline hydrolysis method on the basis of the obtained fat extracts and original soapstock, were studied. These results are consistent with measurements on the Langmuir balance.

Synthesis, Characterization, Biodegradation and Evaluation of the Surface Active Properties of Nonionic Surfactants Derived from Jatropha Oil

2013 ◽  
Vol 16 (6) ◽  
pp. 857-863 ◽  
Author(s):  
Nabel A. Negm ◽  
Abdou Saad El-Tabl ◽  
Ismail A. Aiad ◽  
Khalid Zakareya ◽  
Ahmed H. Moustafa
Keyword(s):  
Nonionic Surfactants ◽  
Jatropha Oil ◽  
Surface Active Properties ◽  
Surface Active

SURFACE-ACTIVE AND PERFORMANCE PROPERTIES OF CATIONIC IMIDAZOLINIUM SURFACTANTS BASED ON DIFFERENT FATTY ACIDS

2008 ◽  
Vol 15 (04) ◽  
pp. 361-367 ◽  
Author(s):  
DIVYA BAJPAI ◽  
V. K. TYAGI
Keyword(s):  
Fatty Acids ◽  
Cationic Surfactants ◽  
Nonionic Surfactants ◽  
Performance Properties ◽  
Quaternary Nitrogen ◽  
Foaming Property ◽  
Surface Active Properties ◽  
Surface Active ◽  
And Performance

Imidazoline surfactants belong to the category of cationic surfactants. Cationic surfactants are often quaternary nitrogen salts and are widely used both in nonaqueous systems and in applications such as textile softeners, dispersants, and emulsifiers. This study describes the surface-active properties of cationic imidazolinium surfactants synthesized from different fatty acids. Their laundry performance in combination with nonionic surfactants like detergency, foaming property, softening property, rewettability etc., is also emphasized.

scholarly journals Influence of isopropyl alcohol on the surface-active properties of Safol 23

2020 ◽  
Vol 10 (2) ◽  
pp. 191-199
Author(s):  
M.G. Shcherban ◽  
◽  
A.D. Solovyev ◽  
A.O. Saliakhova ◽  
◽  
...  
Keyword(s):  
Surface Activity ◽  
Isopropyl Alcohol ◽  
Mixed Micelles ◽  
Surfactant Solution ◽  
Surface Active Properties ◽  
Hydrophilic Lipophilic Balance ◽  
Alcohol Water ◽  
Interaction Factor ◽  
Surface Active ◽  
Water Alcohol

The effect of isopropyl alcohol on the surface-active characteristics of SAFOL 23 nonionic surfactants was explored. The surface tension isotherms of an aqueous surfactant solution and its water-alcohol compositions were obtained. Based on a series of tension isotherms of a number of surfactant – alcohol – water systems, the compositions of mixed micelles and the values of the surfactant interaction factor in the micelle were calculated. The dependence of the surface activity of a water-alcohol composition on its composition was found and studied. The dependence of surface activity on the ratio of surfactant has the following form: alcohol is not monotonic and passes through a maximum, which is associated with a change in the function of alcohol with an increase in its content and a transition from co-surfactant to co-solvent. A feature of the adsorption process of surfactant – alcohol systems on highly dispersed PTFE was studied, namely, the free surface energy of the polymer was calculated, and isotherms of the contact angle were constructed. The cloud point of the systems was calculated and the characteristic of the hydrophilic-lipophilic balance was found. The introduction of alcohol changes the hydrophilic-lipophilic balance of SAFOL 23, which allows it to be used as a solubilizer, emulsifier.

Synthesis, Surface-Active Properties, and Emulsification Efficiency of Trimeric-Type Nonionic Surfactants Derived From Tris(2-aminoethyl)amine

2010 ◽  
Vol 14 (2) ◽  
pp. 185-193 ◽  
Author(s):  
Manar El-Sayed Abdul-Raouf ◽  
Abdul-Raheim Mahmoud Abdul-Raheim ◽  
Nermine El-Sayed Maysour ◽  
Hamed Mohamed
Keyword(s):  
Nonionic Surfactants ◽  
Surface Active Properties ◽  
Surface Active

scholarly journals Surface Active Properties of Ninol Type Nonionic Surfactants Derived from Perfluorooctanoic Acid

1983 ◽  
Vol 32 (5) ◽  
pp. 258-261
Author(s):  
Chikai KIMURA ◽  
Kageaki KASHIWAYA ◽  
Koichi MURAI ◽  
Noboru SATO ◽  
Tatsuo NISHIYAMA
Keyword(s):  
Nonionic Surfactants ◽  
Perfluorooctanoic Acid ◽  
Surface Active Properties ◽  
Surface Active

Role of the Structure and Electronic Properties of Fe2O3-MoO3 Catalyst on the Dehydration of Isopropyl Alcohol

1993 ◽  
Vol 58 (7) ◽  
pp. 1591-1599 ◽  
Author(s):  
Abd El-Aziz A. Said
Keyword(s):  
Active Sites ◽  
Isopropyl Alcohol ◽  
Oxide Catalyst ◽  
Flow System ◽  
Charge Carriers ◽  
X Ray Diffraction ◽  
X Ray ◽  
Catalyst Composition ◽  
Surface Active

Molybdenum oxide catalyst doped or mixed with (1 - 50) mole % Fe3+ ions were prepared. The structure of the original samples and the samples calcined at 400 °C were characterized using DTA, X-ray diffraction and IR spectra. Measurements of the electrical conductivity of calcined samples with and without isopropyl alcohol revealed that the conductance increases on increasing the content of Fe3+ ions up to 50 mole %. The activation energies of charge carriers were determined in presence and absence of the alcohol. The catalytic dehydration of isopropyl alcohol was carried out at 250 °C using a flow system. The results obtained showed that the doped or mixed catalysts are active and selective towards propene formation. However, the catalyst containing 40 mole % Fe3+ ions exhibited the highest activity and selectivity. Correlations were attempted to the catalyst composition with their electronic and catalytic properties. Probable mechanism for the dehydration process is proposed in terms of surface active sites.

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