• Alim G. Shishatsky Дніпровський національний університет імені Олеся Гончара, Ukraine
  • Yulia V. Voytenko Дніпровський національний університет імені Олеся Гончара, Ukraine
  • Kateryna A. Plyasovskaya Дніпровський національний університет імені Олеся Гончара, Ukraine
  • Marina S. Mondrusova Дніпровський національний університет імені Олеся Гончара, Ukraine




surfactants, adhesion, wetting, dustiness, fractional composition


Data on the physico-chemical processes occurring during the pelletization of sintering mixture were obtained by bench and laboratory studies. Both the sintering parameters of the mixture and the intensity of dust and harmful gases entry into the atmospheric air together with sintering gases depend on the degree and quality of pelletization. The adsorption of surfactants was studied; the adhesion of surfactant solutions was calculated on the basis of contact angle measurements; an original method was applied for measuring the rupture force used for breaking the wetted sintering mixture, and data on the change in the fractional composition of the sintering mixture after the wetting were obtained. The optimal parameters of the pelletizing process were established. The optimal concentration of surfactant (TEAS) in the pelletizing solution was 0.00015 – 0.00020 mol/l at a flow rate of 70 – 80 g per ton of the sintering mixture; the best wetting and the smallest dust content (the percentage of sintering mixture fractions <3 mm) is provided by using seawater as a solvent. It is noted that not only a decrease, but also an increase in the TEAS concentration relative to the optimal value leads to a noticeable deterioration in the sintering mixture quality. Presumably, this behavior of the system under study is associated with both the size effects and the increased polarization of the sulfo group in the surfactant.

Author Biography

Kateryna A. Plyasovskaya, Дніпровський національний університет імені Олеся Гончара

Кафедра физической и неорганической химии, доц.


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