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Information × Registration Number 0218U000109, 0117U006854 , R & D reports Title Development of colloid-chemical bases for obtaining and regulating rheological properties and stabilization coal dispersions in media of different polarity. popup.stage_title Head Makarov Anatoliy Semionovich, Registration Date 17-01-2018 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 The object of investigation: coal dispersions in media of different polarity, coal of different brands, surfactants, polymers, modified graphite. The main goal of this work is the research of of the influence of physicochemical factors, rheological behavior, electrokinetic properties, surfactants, polymers on highly concentrated coal dispersions in media of different polarity. Research methods rheology, electrokinetic.The main results еhe the physicochemical features of obtaining fuel disperse systems based on natural coal and liquid organic media are considered. When investigating the effect of surfactants of different classes on the rheological characteristics of disperse systems based on coal and lower aliphatic alcohols, it was established that the best characteristics are provided by suspensions in which there were non-ionic surfactants with sufficiently long aliphatic chains in quantities exceeding their critical the concentration of micelle formation, as well as the values of hydrophilic-lipophilic balance in the range of 12.6 - 18. To stabilize highly concentrated spi tougolnyh expedient to use suspensions of substances of which the hydrophobic radical represented by a linear structure or aromatic compounds, and hydrophilic - more functional groups. Investigation of the influence of the molecular weight and concentration of stabilizers on the stability of the alcohol-coal suspensions showed that the increase in the molecular weight of the polymer not only increases the stability, but also increases the effective viscosity of the investigated systems. The prepared systems have been successfully tested in pilot installations "ANA-TEMS" company. Scope of application - energetics. Product Description popup.authors Димитрюк Тетяна Миколаївна Кліщенко Роман Євгенійович Коновал Олександр Андрійович Косигіна Ірина Миколаївна Кручко Ірина Миколаївна Макарова Катерина Вікторівна Мамченко Олексій Володимирович Пахарь Тетяна Анатолівна Савченко Ольга Анатоліївна Садовський Дмитрий Юрійович Якупова Ірина Володимірівна popup.nrat_date 2020-04-02 Close