Co-precipitation method is used to prepare magnetite nanoparticles (Fe3O4) which stabilized by two nonionic and one cationic surfactant. 1H NMR confirm the chemical structure of synthesized surfactants. The prepared characterized size distribution (DLS), Fourier transform infrared spectroscopy (FTIR), magnetic properties (magnetic susceptibility analysis). X-ray diffraction (XRD) illustrated a cubic crystalline nanoparticles. Transmission electron microscope (TEM) images showed that had...

In this work, water-in-diesel fuel nanoemulsions were prepared with mixed nonionic surfactants. Several mixtures of sorbitan monooleate and polyoxyethylene (20) monooleate, different Hydrophilic–Lipophilic Balance (HLB) values (9.6, 9.8, 10, 10.2 10.4) to achieve the optimal HLB value. Three surfactant concentrations at 6%, 8% 10% identify optimum concentration. Five emulsions water contents: 5%, 7%, 9% (wt./wt.) using high energy method conditions (HLB = 10 concentration 10%). The effect...

Abstract This study aims to prepare mono and gemini nonionic emulsifiers differing in HLB utilize formulated metal cutting fluids. Also, the cationic surfactant (GCS) was prepared applied as a corrosion inhibitor biocide formulations. FT-IR NMR confirmed chemical structure of compounds. Different oil package formulations were by adding different trial concentrations additives (emulsifier, inhibitor, coupling agent, biocide) eco-friendly vegetable (castor oil). Standard procedures performed...

Linear alkyl benzene sulfonic acid (L) and three of its ester derivatives (L1, L2, L3) were prepared, followed by quaternization these esters (L1Q, L2Q, L3Q). The corrosion inhibition effect on carbon steel in 1 M HCl was studied using weight loss potentiodynamic polarization measurements. adsorption the inhibitors surface obeyed Langmuir's isotherm. associated activation energy other thermodynamic parameters such as enthalpy (ΔH∗), entropy (ΔS∗) activation, adsorption–desorption equilibrium...

Abstract The principle focus of this work is to address the issues associated with existence water in crude oil, especially corrosion, scaling, viscosity, and catalyst suppression problems. This aims prepare star polymer nonionic surfactants based on (2Z,2′Z,2″Z)‐4,4′,4″‐((nitrilotris(ethane‐2,1‐diyl))tris(oxy))tris(4‐oxobut‐2‐enoic acid) be used as demulsifiers. To achieve aim, maleic anhydride was reacted triethanolamine followed by esterification polyethylene oxide polypropylene copolymer...

The main objective of this work was to examine the corrosion inhibition ability three novel surfactant molecules synthesized from 1,3,5-triethanolhexahydro-1,3,5-triazine, which named (I, II and III). chemical structure these surfactants confirmed by FT-IR 1H NMR spectroscopy. Also surface active properties for compounds were calculated. effect on carbon steel in a solution 1 M HCl studied using mass-loss electrochemical measurements. Protection efficiencies found be 93.1%, 90.7%, 87% III,...

Abstract The interfacial and micellization behaviors of binary mixtures two gemini cationic surfactants conventional the cetyl trimethyl ammonium bromide surfactant were studied at various molar ratios. From equilibrium surface tension measurements, critical micelle concentrations (CMC) data obtained as functions composition. Values CMC analyzed according to regular solution model developed by Rubingh for mixed micelles. Two interaction parameters each system, interface, in micellar phase....

Wastewater disposal has been an important issue from environmental perspective in terms of the serious damages and harms its contaminants may cause. Treatment wastewater, through pollutants removal, either before or for reuse certain industrial agricultural purposes, is essential process. In response to this claim, a novel nano-structured, macro-porous, polymer-based membrane/sorbent was prepared, highly open porous structure with nano-structured sorbent interconnecting walls based on high...

The aim of this paper is to investigate the effect water-in-diesel fuel nanoemulsions on diesel engine performance and exhaust emissions a single cylinder at different loads. Emulsified was prepared by mixing with surfactant in percentage 4, 6, 8 10 wt% emulsion total weight. oils varying content water concentrations were via batch method technique. Different as 5, 6 7 gradually added. Effect concentration parameters investigated. From obtained results, specific consumptions for emulsions...

The corrosion inhibition process of carbon steel in 1 M HCl by octadecylbenzene sulfonic acid (H) and their three ester derivatives (H1, H2, H3) were studied. esters quaternized n-butyl bromide to get (H1Q, H2Q, H3Q). These products have been investigated as inhibitors using weight loss potentiodynamic polarization measurements. From the obtained results it was found that, efficiency increases with increasing inhibitor concentration ranked (H3Q > H2Q H1Q H3 H2 H1 H). adsorption on surface...

This research aims to convert tetraethylene pentamine Gemini surfactants from oil water-soluble corrosion inhibitors for applying in field at temperatures up 65 °C. To achieve this aim, four new ethoxylated denoted as (T1, T2, T4 and T6) bearing different ethylene oxide units of 19, 28, 45 65, respectively were prepared evaluated inhibitors. The chemical structures the verified using FT-IR 1H NMR spectroscopic analysis. performance was determined surface tension measurements thermodynamic...

Purpose This paper aims to formulate a new metal working fluid (MWF) composition including some eco-friendly emulsifiers, corrosion inhibitor, biocide, and non- edible vegetable oil (castor oil) as the base oil. To achieve this aim, five MWFs with different hydrophilic–lipophilic balance (HLB) value 10, 9.5, 9, 8.5 8 were prepared identify optimum HLB that gives highly stable oil-in-water emulsion. The performance of castor based MWF was evaluated using tool chip tribometer drill...

Four copolymers were prepared by copolymerization of octadecyl acrylate with maleic anhydride abbreviated as [ODM], the resulted copolymer was reacted octadecylalcohol [ODMSA], hexadecylamine [ODMCA], benzyl alcohol [ODMBA] and aniline [ODMAn]. Three oil-soluble surfactants also esterification mono, di tri ethanolamine oleic acid, [MEAO, DEAO TEAO]. These compounds purified characterized FTIR, 1H-NMR GPC. The evaluated individually mixed flow improvers pour point depressants for waxy crude...

Dicarboxy methyl ethoxylated aniline and 1,3‐dicarboxy methoxy benzene were synthesized as intermediate monomers to prepare six polyester surfactants. The first three of them obtained by polyesterification dicarboxy (EO=10) with polyethylene glycol (M. wt.; 400, 600, 1000). product named An E10 1000. later was 1, 3 dicarboxymethoxy the same PEG at different molecular weights. as; R These polyesters characterized FT.ir, GPC. evaluated pour point depressants a mixed blend Egyptian Western...

In this research, 24 of water-in-diesel fuel nanoemulsions were prepared using mixed nonionic surfactants sorbitan monooleate and polyoxyethylene trioleate (MTS). The emulsions formed a new modified low-energy method at hydrophilic-lipophilic balance (HLB) value 10 working temperature 20°C. Five HLB values 9.6, 9.8, 10, 10.2, 10.4 to identify the optimum that gives low water droplet size conditions as: 5 wt% contents, surfactant concentration, effect concentration content on for 0, 15, 30,...

Abstract The effect of different nine molar mixed ratios didecyl dimethyl ammonium chloride as a cationic surfactant and nonyl phenol ethoxylate (e.o. = 9) nonionic surfactant, on the inhibition behavior carbon steel have been examined using weight loss potensiodynamic methods. results show that these cationic/nonionic mixtures (II to X) can be used inhibit corrosion pipelines in petroleum acid job. surface active properties were calculated tension measurements critical micelle concentration...

Styrene–maleic anhydride (SMA) copolymer is prepared and then reacted with octadecyl alcohol SMASA, hexadecylamine SMACA, benzyl SMABA, aniline SMAAn to obtain four copolymers. Three oil soluble surfactants are by esterification of mono-, di-, triethanolamine oleic acid MEAO, DEAO, TEAO. The structure the copolymers characterized using spectroscopic techniques such as infra-red (FTIR), 1H nuclear magnetic resonance (NMR), gel permeation chromatography (GPC). evaluated individually flow...

Abstract Sodium (Z)-15-carboxylato-8-(2-(((Z)-3-carboxylatoacryloyl)oxy) ethyl)-4,13-dioxo-5,11,12-trioxa-8,16-diazahentriacont-2-enoate has been synthesized. The chemical structure was confirmed by FT-IR and 1 HNMR spectroscopy. surface properties of the synthesized trianionic surfactant, including critical micelle concentration (CMC), effectiveness (π cmc ), maximum excess (Γ max minimum area (A min ) were determined from tension measurements. efficiency surfactant to remove Pb(II) using a...

Abstract Linear and heavy alkyl benzene (HAB) were sulfonated with fuming sulfuric acid (oleum) the products esterified tri poly ethanolamine ( d = 4 6). The prepared three esters from each series quaternized n ‐butyl bromide. resulted six ester of linear HAB sulfonate named as (L1Q, L2Q, L3Q, H1Q, H2Q, H3Q). surface thermodynamic properties these compounds have been investigated. From data obtained, it was found that tension active for derivatives better than which obtained (LAB)...

Purpose No one particular fluid has cooling and lubrication properties suitable for every metalworking application. The purpose of this paper is first, to investigate the effect anionic nonionic mixed emulsifier system in stabilization cutting formulations second, study interaction synergism fulfill additives fluids achieve low scar diameters, high stability, anti rusting corrosion properties. Design/methodology/approach A lot set mixtures work were formulated get demand needed soluble oil...

Abstract In this work, water-in-diesel fuel nanoemulsions were prepared with mixed nonionic surfactants. Five emulsions different water contents: 5, 6, 7, 8, and 9% (wt/wt) using high-energy method. Several mixtures of sorbitan monooleate, polyoxyethylene (20) results in hydrophilic-lipophilic balance (HLB) values (9.6, 9.8, 10, 10.2, 10.4) to achieve the optimal HLB value used preparation nanoemulsions. The effect water, surfactant concentration on droplet size has been studied. Droplet was...