The adsorption of alkylpyridinium chlorides and their effect on the interfacial behavior of quartz

Fuerstenau, D.W.; Jia, Renhe

doi:10.1016/j.colsurfa.2004.04.090

Cited by 75 publications

(60 citation statements)

References 14 publications

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“…Finally, in region 4, the adsorbed layer on mineral surface presents the structure of a bilayer, thus further increase of reagent concentration has almost no influence on the adsorption. Figure 9a, adsorption isotherms of TTPC and DTAC similarly experience 4 regions until the adsorption reaches the maximum, which is in good agreement with the reverse orientation adsorption model proposed by Somasundaran and Fuerstenau [32,33,52,53]. The schematic model of the adsorbed surfactant at the quartz/water interface in the four regions [54] has also been proposed and illustrated in Figure 9b.…”

Section: Adsorption Mechanismsupporting

confidence: 68%

Discovery of a Novel Cationic Surfactant: Tributyltetradecyl-Phosphonium Chloride for Iron Ore Flotation: From Prediction to Experimental Verification

Pan

Gao

et al. 2017

Minerals

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Abstract:In this work, tributyltetradecyl-phosphonium chloride (TTPC), has been first introduced to be a novel and efficient cationic surfactant for cationic reverse flotation separation of quartz from magnetite. The first-principles density functional theory calculations, Zeta potential measurements and adsorption isotherm measurements consistently predict that TTPC may be a promising collector that is better than dodecyl triethyl ammonium chloride (DTAC), based on the facts that TTPC and DTAC both prefer to physically adsorb on the quartz surface owing to electrostatic force, but the active part (P + (C 4 H 9 ) 3 ) of TTPC takes much more positive charges than that (N + (CH 3 ) 3 ) of DTAC. The micro-flotation and Bench-scale flotation results further verify that TTPC presents a stronger collecting power and much better selectivity for iron ore reverse flotation in comparison to the conventional collector DTAC. Furthermore, the corresponding adsorption mechanism of TTPC on the quartz have also been investigated in detail. This work might show a good example to discover a potential candidate collector by analogy with a known excellent collector based on reasonable prediction.

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Section: Adsorption Mechanismsupporting

confidence: 68%

Discovery of a Novel Cationic Surfactant: Tributyltetradecyl-Phosphonium Chloride for Iron Ore Flotation: From Prediction to Experimental Verification

Pan

Gao

et al. 2017

Minerals

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“…Similarly, it was reported that zeta potential of uncontaminated kaolinite is negative and ranges from -32 mV at pH 12 to lower negative values at pH 3 (West and Stewart 2000). Table 2 shows the reported iep and maximum-minimum zeta potential values of quartz along with the data from literature (Larson and Pugh 1998;Lorne et al 1999;Besra et al 2000;Huang and Fuerstenau 2001;Kosmulski et al 2002;Xu et al 2003;Fuerstenau and Jia 2004;Prasanphan and Nuntiya 2006;Rodriguez and Araujo 2006). As seen from Table 2, the reported ieps for quartz are generally around pH 2.…”

Section: Methodsmentioning

confidence: 67%

A study of factors affecting on the zeta potential of kaolinite and quartz powder

Yükselen-Aksoy

Kaya²

2010

Environ Earth Sci

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The purpose of this study was to determine the effects of pH, ion type (salt and metal cations), ionic strength, cation valence, hydrated ionic radius, and solid concentration on the zeta potential of kaolinite and quartz powder in the presence of NaCl, KCl, CaCl 2 , CuCl 2 , BaCl 2 , and AlCl 3 solutions. The kaolinite and quartz powder have no isoelectric point (iep) within the entire pH range (3 \ pH \ 11). In the presence of hydrolysable metal ions, kaolinite and quartz powder have two ieps. As the cationic valence increases, the zeta potential of kaolinite and quartz powder becomes less negative. Monovalent cation, K ? , yields more negative zeta potential values than the divalent cation Ba 2? . As concentration of solid increases, the zeta potential of the minerals becomes more positive under acidic conditions; however, under alkaline conditions as solid concentration increases the zeta potential becomes more negative. Hydrated ionic radius also affects the zeta potential; the larger the ion, the thicker the layer and the more negative zeta potential for both kaolinite and quartz powder.

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“…This interaction may occur through cation adsorption onto the first chemisorbed IL anionic layer [58,81,85,86] and with the aid of the London dispersion forces between the hydrophobic chains as seen in Figs. 14 and 15(c) [87,88].…”

Section: Il Collector Conformation On Bastnäsite and Monazite Surfacesmentioning

confidence: 98%

Ionic-liquid collectors for rare-earth minerals flotation⿿Case of tetrabutylammonium bis(2-ethylhexyl)-phosphate for monazite and bastnäsite recovery

Azizi

Larachi

Latifi

2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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The adsorption of alkylpyridinium chlorides and their effect on the interfacial behavior of quartz

Cited by 75 publications

References 14 publications

Discovery of a Novel Cationic Surfactant: Tributyltetradecyl-Phosphonium Chloride for Iron Ore Flotation: From Prediction to Experimental Verification

Discovery of a Novel Cationic Surfactant: Tributyltetradecyl-Phosphonium Chloride for Iron Ore Flotation: From Prediction to Experimental Verification

A study of factors affecting on the zeta potential of kaolinite and quartz powder

Ionic-liquid collectors for rare-earth minerals flotation⿿Case of tetrabutylammonium bis(2-ethylhexyl)-phosphate for monazite and bastnäsite recovery

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