Application of nonionic surface-active substances in combination with acrylamide flocculants for silicate and carbonate mineral flotation

Aliferova, S.; Titkov, S.; Sabirov, R. Kh.; Novoselov, V.F.; Panteleeva, Ninel

doi:10.1016/j.mineng.2005.01.013

Cited by 8 publications

(6 citation statements)

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“…These insoluble clays must be removed before potash flotation because they present high adsorptive capacity for amines, which are generally used as collectors in the subsequent sylvite flotation step. [19,20] Extensive clay accumulation occurs in low-grade sylvinite ores, such as those mined from salt lakes in the Qaidam Basin of Qinghai, northwestern China. Approaches through which the clay from low-grade potash ore may be utilized have become a major consideration in potassium recovery processes.…”

Section: Introductionmentioning

confidence: 99%

Facile Preparation of Ammonium Molybdophosphate/Al‐MCM‐41 Composite Material from Natural Clay and Its Use in Cesium Ion Adsorption

et al. 2015

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Ordered hexagonal mesoporous aluminosilicate matrix (Al-MCM-41) with incorporated ammonium molybdophosphate (AMP) was successfully synthesized by a one-pot synthesis method with natural clay from low-grade potash ores of Qinghai salt lake as the silica and aluminum source. We introduced a modified "liquid-phase transport" step, which allowed the use of impure natural clay as a starting material to directly produce pure product without sedimentation pretreatment. The resultant product was characterized by X-ray fluorescence (XRF) spectroscopy, FTIR spectroscopy, XRD,

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Section: Introductionmentioning

confidence: 99%

Facile Preparation of Ammonium Molybdophosphate/Al‐MCM‐41 Composite Material from Natural Clay and Its Use in Cesium Ion Adsorption

et al. 2015

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“…For stable dispersion, interparticle interaction of the coal particles has to be mutually repulsive. Surfactants and polymers, due to their amphiphilic nature, adsorb strongly on solid/liquid interface, making the surface hydrophilic or hydrophobic. , Depending on the charge of the head groups and size of both hydrophilic group and hydrophobic chain, they provide electrostatic/steric hindrance for the particle−particle association. , Many commercially available surfactants and polymers, on being adsorbed to coal−water interface, have improved the stability of coal−water slurry as well as increased concentration of coal in the coal−water slurry. – Detailed screening of the literature, however, reveals that these additives are mostly of synthetic nature, development of a natural additive for stabilizing coal−water slurry being scanty.…”

Section: Introductionmentioning

confidence: 99%

Effect of Organized Assemblies. Part 4. Formulation of Highly Concentrated Coal−Water Slurry Using a Natural Surfactant

et al. 2008

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Coal-water slurry has received considerable research nowadays due to its ability in substituting energy sources. The present work reports the formulation of highly concentrated coal-water slurry using a natural occurring surface active compound, saponin, extracted from the fruits of plant Sapindous laurifolia. The isolation of saponin from the plant and its surface activity has been discussed. The rhelogical characteristics of coal-water slurry have been investigated as a function of coal loading, ash content of coal, pH, temperature, and amount of saponin. The viscosity of the slurry and zeta potential are substantially decreased with concomitant shift of the isoelectric point of coal on adsorption of saponin to it. In the presence of 0.8% of saponin, coal-water slurry containing 64% weight fraction of coal could be achieved. The slurry is stable for a period of as long as 1 month in contrast to 4-5 h in the case of bare coal-water slurry. The results confirm the use of saponin as a suitable additive for coal-water slurry similar to the commercially available additive such as sodium dodecyl sulfate. Basing on the effect of pH on the zeta potential and viscosity of slurry, a suitable mechanism for saponin-coal interaction and orientation of saponin at the coal-water interface has been proposed.

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“…Nonionic surfactants and nonpolar oils are often used for coadsorption with ionic surfactants at the solid-liquid interface thereby increasing the hydrophobicity (Soto and Iwasaki, 1986) and hence the floatability. Nonionic surfactants along with acrylamide are found to affect the flotability of silicate and mineral flotation (Aliferova et al, 2005). Excess of adsorption of surfactants at high concentration form bilayer with the polar head towards the bulk solution leading thereby decrease in the mineral hydrophobicity and thus its flotation (Somasundaran et al, 1983;Ceik and Somasundaran, 1980).…”

Section: Introductionmentioning

confidence: 99%

Organization of amphiphiles, Part VIII: Role of polyoxyethylated alkylphenols in optimizing the beneficiation of hydrophilic mineral

Misra

Panigrahi

Somasundaran

2006

International Journal of Mineral Processing

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Application of nonionic surface-active substances in combination with acrylamide flocculants for silicate and carbonate mineral flotation

Cited by 8 publications

References 0 publications

Facile Preparation of Ammonium Molybdophosphate/Al‐MCM‐41 Composite Material from Natural Clay and Its Use in Cesium Ion Adsorption

Facile Preparation of Ammonium Molybdophosphate/Al‐MCM‐41 Composite Material from Natural Clay and Its Use in Cesium Ion Adsorption

Effect of Organized Assemblies. Part 4. Formulation of Highly Concentrated Coal−Water Slurry Using a Natural Surfactant

Organization of amphiphiles, Part VIII: Role of polyoxyethylated alkylphenols in optimizing the beneficiation of hydrophilic mineral

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