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Information × Registration Number 0216U002618, 0114U000643 , R & D reports Title Study of the condition for obtaining highly dispersed precipitation of metal hydroxides and salts popup.stage_title Head Korchuganova Olena Mykolaevna, Registration Date 20-04-2016 Organization EAST-UKRAINIAN VOLODIMIR DAL NATIONAL UNIVERSITY popup.description2 71 p., 15 tables, 19 figures, 55 sources of literature Objective - development mode of hydroxides and carbonates of iron, nickel, calcium precipitation, that will get products with high dispersion. Methods: thermodynamic analysis, potentiometric titration, volumetric methods of chemical analysis, the study of the chemical reactions kinetics in isothermal conditions, x-ray difraction and differential thermal analysis methods The report presents the results of thermodynamic and kinetic studies of iron hydroxide, base nickel carbonate and calcium carbonate precipitation processes. It was found the optimum ratio of precipitators to the traditional metal ions, and pH of precipitates obtaining. Is getting the kinetic equations of salts and hydroxides precipitation that using urea and sodium carbonate. Properties iron oxides found and confirmed by X-ray analysis obtained nanoscale size. The kinetics of urea hydrolysis in the conditions of hydroxides and metal salts precipitation in order to identify the best mode as limiting hydrolysis stage of homogeneous precipitation. The results recommended for calculation and design processes of hydroxides and metal salts precipitation in the chemical industry. Keywords: urea hydrolysis, precipitation, kinetics, reaction speed, dispersion, hydroxides, carbonates. Product Description popup.authors Абузарова Каміла Рамилівна Бура Євген Сергійович Пригородов Павло Володимирович Танцюра Емілія Володимірівна Юрченко Карина Максимівна popup.nrat_date 2020-04-02 Close