Surfactant mixtures as collectors in flotation

Rybinski, Wolfgang von; Schwuger, M. J.; Dobiáš, B.

doi:10.1016/0166-6622(87)80122-1

Cited by 22 publications

(7 citation statements)

References 7 publications

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“…Although there are a number of processes where the mixtures of dissimilar surfactants showed better properties than the individual components alone, the use of mixed cationic/anionic/ non-ionic collectors for effective flotation and selectivity was recognised only lately [3][4][5][6][7]. A HF free flotation process using a mixture of cationic and anionic collectors for the separation of feldspar from quartz was described by Katayanagi [8] and this process was reported to be applied in industrial practice [9].…”

Section: Introductionmentioning

confidence: 99%

Adsorption mechanism of mixed cationic/anionic collectors in feldspar-quartz flotation system

Vidyadhar

Rao

2007

Journal of Colloid and Interface Science

157

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Section: Introductionmentioning

confidence: 99%

Adsorption mechanism of mixed cationic/anionic collectors in feldspar-quartz flotation system

Vidyadhar

Rao

2007

Journal of Colloid and Interface Science

157

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“…Figure 11 shows the adsorption of a nonionic and an anionic surfactant on a typical hydrophobic pigment. In contrast to anionic and cationic surfactants, nonionic surfactants have no or little effect on surface charge [18]. Therefore, their mode of action cannot be ascribed to changes in electrical charge on pigments and fibers.…”

Section: Adsorption Layermentioning

confidence: 98%

Laundry Detergents, 1. Introduction

Smulders

Rybinski

Nordskog

2011

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Historical Review 2. Physical Chemistry of the Washing Process 2.1. Introduction to the Washing Process 2.2. Components 2.2.1. Substrates 2.2.2. Washing Liquid/Water 2.2.3. Soils 2.3. Wetting/Adsorption on Surfaces 2.3.1. Wetting 2.3.2. Drainage 2.3.3. Adsorption Layer 2.4. Soil Removal and Stabilization 2.4.1. Builders 2.4.1.1. Overview on Builder Systems 2.4.1.2. Precipitation Builders 2.4.1.3. Complexing Agents 2.4.1.4. Ion Exchangers 2.4.1.5. Cobuilders 2.4.1.6. Soluble Builders 2.4.2. Oily Soil 2.4.3. Particulate Soil 2.4.4. Chemical Reactions 2.4.4.1. Bleachable Stains 2.4.4.2. Enzymatic Soil Removal 2.4.5. Soil‐Repelling Effects 2.5. Formulation 2.5.1. Foam 2.5.2. Microemulsion 2.5.3. Phase Stability 2.5.4. Softeners 2.6. Concluding Remarks

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“…They found that the addition of nonionic collectors to traditional fatty acid collectors can improve flotation results. Rybinski et al [19] studied the selective flotation of scheelite from calcite. The flotation recovery and selectivity of combined anion-nonionic collector systems are superior to those of single-collector systems and can decrease the required collector dosage.…”

Section: Instructionmentioning

confidence: 99%

Effect of Chain Length Compatibility of Alcohols on Muscovite Flotation by Dodecyl Amine

et al. 2018

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A portion of dodecyl amine (DDA) in a muscovite flotation system was replaced with alcohols with different carbon-chain lengths. These alcohols included octanol (OCT); decanol (DEC); dodecanol (DOD); and tetradecanol (TER). The muscovite adsorption behavior of the mixed DDA and alcohol systems were investigated through zeta potential; contact angle; and adsorption quantity tests. Single-mineral flotation tests showed that the muscovite-collecting power of the mixed DDA/alcohol (OCT, DEC, or DOD) system was stronger than that of the pure DDA system. The muscovite-collecting power of the collector systems decreased in the following order: DDA/DEC > DDA/OCT > DDA/DEC > DDA > DDA/TER. Zeta potential and contact angle analysis indicated that when combined with DDA; alcohols physically adsorbed on the surfaces of muscovite. This behavior improved the hydrophobicity of muscovite. Furthermore, adsorption analysis revealed that synergy between DDA and alcohol enhanced the adsorption of alcohol on muscovite. DDA has a dominant role in synergistic adsorption; whereas alcohol has a supporting role. Among all tested alcohols; DDA and DOD exhibit the highest synergetic adsorption effect because of their similar carbon-chain lengths. This similarity promotes the formation of a compact adsorption layer on the muscovite surface.

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Surfactant mixtures as collectors in flotation

Cited by 22 publications

References 7 publications

Adsorption mechanism of mixed cationic/anionic collectors in feldspar-quartz flotation system

Adsorption mechanism of mixed cationic/anionic collectors in feldspar-quartz flotation system

Laundry Detergents, 1. Introduction

Effect of Chain Length Compatibility of Alcohols on Muscovite Flotation by Dodecyl Amine

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