Abstract
The prime goal of this investigation is to study the effectiveness of the saponin extracted from the fruit ofAcacia concinna (Willd.) Dc. as a dispersing agent in the pipeline stream of iron ore–water slurry. By varying saponin dosages, iron ore percentage, pH, temperature, and the shear stress-shear rate correlation on the rheological properties of iron ore water slurry has been investigated. The isoelectric point of iron ore water slurry is specified by altering the pH with zeta potential. Interaction between saponin of Acacia concinna (Willd.) Dc. and iron ore particles have been described using a suitable mechanism based on the hydrophobic and hydrophilic character of both iron ore particles and saponin molecules. The change in electrostatic force induces by the surface charge on each particle results in enhanced dispersion behavior in the aqueous solution for the surface-modified particles. Based on pressure drop and energy consumption, the economic influence of the dispersant has been assessed for the proposed iron ore water slurry pipeline that will be put into practicable operation.
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