Interaction Between Cationic and Anionic Surfactants: Detergency and Foaming Properties of Mixed Systems

Wang, Ruitao; Li, Yunling; Li, Yuan

doi:10.1007/s11743-014-1605-2

Cited by 56 publications

(16 citation statements)

References 40 publications

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“…The units of Γ max is µmol/m 2 , and A min is in Å 2 . As has been reported previously [27], n = 1 and n = 2 for mixed CTAC/OCT and a single system, respectively. Table 2 summarizes the Γ max and A min values for some of the mixtures investigated.…”

Section: Surface Properties Of Mixed Surfactants (Ctac/oct)supporting

confidence: 78%

“…Notably, the β value only reflects the molecular interactions between the head groups of two surfactants at the interface or in micelles. However, it does not consider the interaction between the hydrophobic alkyl chains of the surfactants [27]. In general, β parameters are easily obtained from the surface tension or from CMC data.…”

Section: Synergism Of the Mixed Collectors (Ctac/oct)mentioning

confidence: 99%

“…In general, these mixed surfactant systems typically exhibit considerably higher surface activities than their individual components, leading to better wetting, solubilizing, and foaming behavior. In addition, the synergistic effects of mixed surfactants at the air/water interface and their co-adsorption on mineral surfaces have been reported [22][23][24][25][26][27]. Although comprehensive studies on mixed surfactants in aqueous systems have been conducted, several limitations exist.…”

Section: Introductionmentioning

confidence: 99%

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Synergistic Adsorption and Flotation of New Mixed Cationic/Nonionic Collectors on Muscovite

Jiang

Yang

et al. 2017

Minerals

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Abstract:The mixed cationic collector cetyltrimethylammonium chloride (CTAC) and nonionic collector octanol (OCT) was found to exhibit a synergistic effect on the flotation and adsorption of muscovite. To understand the underlying synergistic mechanism, flotation, contact angle, surface tension, and adsorption measurements were carried out. The results obtained from flotation measurements indicated that the mixed CTAC/OCT exhibits a better collecting ability than CTAC or OCT. The recovery of muscovite with CTAC only rapidly decreased from 97.25% at pH 2.64 to 75.26% at pH 5.82, followed by a flat horizontal at a pH is higher than 6. In contrast, a high recovery of greater than 85% muscovite was observed using mixed CTAC/OCT at α CTAC = 0.67 (the mole ratio of CTAC:OCT = 2:1) over the investigated pH range. From the surface activity parameters (CMC, γ CMC , Γ max , A min ) estimated from surface measurements and interaction parameters (β m , β σ ), in addition to the micellar and interfacial compositions (x m 1 , x σ 1 ) obtained from the theory of regular solutions, a synergistic effect is evident in the mixed micelle and at the water/air interface. Moreover, the mixed CTAC/OCT at α CTAC = 0.67 exhibited the maximum synergistic interaction. The results obtained from surface tension measurements indicated that the mixed CTAC/OCT exhibits considerably higher surface activities compared to single CTAC or OCT. The contact angle results confirmed that the mixed CTAC/OCT is a better collector than the individual CTAC or OCT for the flotation of muscovite. According to the results obtained from adsorption experiments, compared with that of individual CTAC or OCT, the amounts of CTAC and OCT adsorbed on the muscovite surface are considerably increase in the mixed systems because of co-adsorption. Based on these results, the mixed CTAC/OCT exhibits a remarkable synergistic effect during the flotation and adsorption of muscovite.

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Section: Surface Properties Of Mixed Surfactants (Ctac/oct)supporting

confidence: 78%

Section: Synergism Of the Mixed Collectors (Ctac/oct)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synergistic Adsorption and Flotation of New Mixed Cationic/Nonionic Collectors on Muscovite

Jiang

Yang

et al. 2017

Minerals

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“…Among the three types of surfactants, hydrocarbon surfactants are the most widely used in foam industries. Much effort has been devoted to researching the foam properties of mixed systems of different hydrocarbon surfactants [1][2][3][4][5][6][7][8]. Nowadays, foams have wide applications in chemical, pharmaceutical, textile, flotation, washing, food industries, water treatment, and in enhanced oil recovery [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Foam Properties of Mixed Systems of Silicone and Hydrocarbon Surfactants

Sheng

et al. 2016

J Surfact & Detergents

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Silicone surfactants are inevitably involved in industrial applications in combination with hydrocarbon surfactants, but properties of the mixtures of silicone and hydrocarbon surfactants have received little attention, especially foam properties of the mixtures. In this study, aqueous solutions of respective binary mixtures of a nonionic silicone surfactant with anionic, cationic, and nonionic hydrocarbon surfactants were prepared for evaluation of their foam properties. Surface tension of aqueous solutions of the mixtures were measured with the maximum bubble pressure method. Foaming ability and foam stability of the mixtures were then evaluated with the standard Ross–Miles method. The findings show that the addition of the silicone surfactant results in a decrease in surface tension for aqueous solutions of the hydrocarbon surfactants. The critical micelle concentration (CMC) of the hydrocarbon surfactants is also changed by the additive silicone surfactant. Additionally, clear foam synergistic effects were observed in the mixtures of silicone and hydrocarbon surfactants, regardless of the ionic types of the hydrocarbon surfactant. The foam stability of the hydrocarbon surfactant was shown to generally improve with the increasing concentration of the silicone surfactant. Even so, aqueous solutions of different ionic hydrocarbon surfactants in the presence of the silicone surfactant will give different foam stabilities. The results of the present study are meant to provide guidance for the practical application of foams generated by the mixtures of the silicone and hydrocarbon surfactants.

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“…It is of great interest to obtain new cationic surfactants containing hydroxyl groups in the head groups and study their physicochemical properties because a concrete application of surfactants is stipulated by their physicochemical properties. As is known, cationic surfactants have been used in flotation separations (Omar & Abdel‐Khalek, ), as antibacterial agents (Sharma et al, ; Wong et al, ), liquid‐phase crystals (Wei, Wei, Wang, Wang, & Liu, ), gene transfection agents (Ronsin et al, ), components of compositions for road repair (Dai et al, ), agents for flotation of minerals (Chapelain, Faure, & Beneventi, ), as metal corrosion inhibitors (Achouri et al, ), as phase‐transfer catalysts with regioselectivity (Mirgorodskaya et al, ), and in many other application areas (Nabil, El‐Mallah, & Mahmoud, ; Qiu, Fang, Lei, & Lin, ; Song, Shang, & Song, ; Wang, Li, & Li, ).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Properties of Quaternary Ammonium Surfactants Based on Alkylamine, Propylene Oxide, and 2‐Chloroethanol

Asadov

Ahmadova

Rahimov

et al. 2018

J Surfact & Detergents

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New quaternary ammonium salts are synthesized by octylamine, nonylamine, dodecylamine, and hexadecylamine reacting with propylene oxide at a mole ratio of 1:2, followed by reaction with 2‐chloroethanol. By tensiometric measurements of aqueous solutions, their surface activity has been determined. Using the results of these measurements and electroconductometric studies, important parameters such as critical micelle concentration (CMC), efficiency of surfactant adsorption, surface pressure at the CMC, changes of Gibbs free energies for micelle formation, and adsorption were estimated. By application of the Gibbs adsorption isotherm, indices such as maximum surface excess concentration and minimum surface area/molecule at the air–water interface were also calculated. Petroleum‐collecting properties of these surfactants were investigated. Among these quaternary ammonium surfactants, the surfactant based on dodecylamine, propylene oxide, and 2‐chloroethanol exhibits the highest petroleum‐collecting capacity.

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Interaction Between Cationic and Anionic Surfactants: Detergency and Foaming Properties of Mixed Systems

Cited by 56 publications

References 40 publications

Synergistic Adsorption and Flotation of New Mixed Cationic/Nonionic Collectors on Muscovite

Synergistic Adsorption and Flotation of New Mixed Cationic/Nonionic Collectors on Muscovite

Experimental Study on Foam Properties of Mixed Systems of Silicone and Hydrocarbon Surfactants

Synthesis and Properties of Quaternary Ammonium Surfactants Based on Alkylamine, Propylene Oxide, and 2‐Chloroethanol

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