INVESTIGATION OF SURFACTANTS AND FLOCCULATION PROCESSES IN COAL BENEFICIATION
Authors
Kucharov Azizbek, Yusupov Farkhod, Khalilov Sanjar, Azizjon Qurbonov, Rano Toshboboyeva
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This study represents an integral investigation of the joint effect of surfactants, flocculants, and Al³⁺/SO₄²⁻ ions on the enrichment of 2BR-B2 and 2BOMSH-B2 varieties of brown coal. The study involves detailed examination of such aspects as dosage of flocculant (25-100 g/Mg), ion effects, agglomeration behavior, settling process kinetics, floc sizes, and transformation of mineral phase under experimental conditions with the help of X-ray fluorescence (XRF). In relation to colloid chemistry aspects, special attention is paid to such phenomena as interfacial interactions, electrical double layer compression, and bridging between particles. This makes the coagulation and separation processes much more efficient, since it is proved that the creation of stable and optimally-sized aggregates substantially increases the efficiency of mineral separation, whereas the excess of flocculant causes the formation of less stable heterophase systems. Thus, it is concluded that the control over colloidal destabilization and interfacial modifications are critical for enhancing the ash content and calorific value of coal..
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Authors
Kucharov Azizbek, Yusupov Farkhod, Khalilov Sanjar, Azizjon Qurbonov, Rano Toshboboyeva
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References:
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