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adsorption of oleic acid on iron ore

Jun 25 2020 · In this work heterogeneous acid catalysts based on sulfated iron oxide produced from mining tailings were prepared by different processes ie ammonium sulfate by simple grinding NH 4 2 SO 4 aqueous impregnation and sulfuric acid impregnation all treated at 500 °C The materials were characterized by Mössbauer and Raman spectroscopies FTIR XRD SEM pyridine adsorption FTIR

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  • Froth Flotation of Iron Ores Publications
    Froth Flotation of Iron Ores Publications

    The adsorption of fatty acids on hematite plays a key role in the direct flotation route In the literature it is generally demonstrated the chemisorption of oleic acid and lauric acid on hematite Buckland et al8 also confirmed control in iron ore flotation circuits and the level of ionic strength in iron ore flotation pulp The

  • Flotation of Iron Ore A Brief Review
    Flotation of Iron Ore A Brief Review

    iron ore using oleic acid or its soaps is usually performed in a strongly alkaline environment ie above pH 11 Fuerstenau and Cummins 28 concluded that when oleate was used as collector the suitable by adsorption of multivalent ions to reverse its surface charge from negative to positive The most

  • Adsorption studies of smithsonite flotation using
    Adsorption studies of smithsonite flotation using

    The recovery and contact angle for oleic acid flotation rises to 93 and 105° respectively with an oleic acid concentration of 11 × 10−3 M and a pH of 10

  • Electronic Supporting information Magnetic separation
    Electronic Supporting information Magnetic separation

    Fe 3O4SA palmitic acidcoated MNPs Fe 3O4PA oleic acidcoated MNPs Fe 3O4OA and linoleic acidcoated MNPs Fe 3O4LA prepared at saturated adsorption conditions a TGA curves figure 5a in main text b DTTGA Representation of first derivate of the weight loss with respect to the temperature plotted against the temperature

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