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Information × Registration Number 0201U005406, 0198U000809 , R & D reports Title Substantiation an ion-exchange equilibrium theory on weakly dissociated ionites and development on its basis alternative technology of water conditioning popup.stage_title Head Mamchenko Oleksij Volodymyrovych, Registration Date 03-07-2001 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 Subject of an investigation: weakly dissociated ionites with different acid-base characteristics, strong-basic anionites, ion-exchange technology with OH-prefilter for water treatment, alternative technology of water conditioning and demineralization, precipitation methods at water treatment. Aim of an investigation: substantiation of alternative technology of water conditioning based on using weakly dissociated forms of ionites. Methods of an investigation: potentiometric titration, theoretical modelling of ionic and ion-exchage equilibrium chemical analysis of solution components, PC data processing. Basic results: the ion-exchange equilibrium theory, which permits to descride resinate solution properties deviations in gel phase of weakly dissociated ionites from ideal have been substantiated. Based on the theory potentiometric titration curves of carboxylic cationites and weak-basic anionites have been analysed. It was determined that local equilibrium constants dependence on a resinate composition in the nearest environment of an ionite exchangeable centre. A priori method of construction of "composition - solubility product" diagram was substantiated. It was set up fundamentals of alternative method of water treatment with using weak dissociated ionites, which applicable as for water conditioning due to its softening, reduction of strong acid anions and alkalinity and for deep water demineralization. It was estimated main technical and economic characteristics of the method on water demineralization example. Area of application: creation of alternative low-waste technology for combined production of deeply softened water and desalted water. "Продовження": 2.Мамченко А.В., Валуйская Е.А. Теоретический анализ обмена ионов Н+-Na+ на карбоксильных катионитах // Журн.физ.химии.-1999.-73, №8.- С.1443-1451. 3.Мамченко А.В., Мокрая О.С. Технико-экономическое обоснование ресурсосберегающего способа обессоливания воды ионитами // ХТВ.-1999.-21, №4.- С.428-437. 4.Мамченко А.В., Якимова Т.И., Климова Г.В. Условия регенерации карбоксильных акриловых катионитов стехиометрическим количеством серной кислоты // ХТВ.-2000.-22, №6.- С.617-626. Product Description popup.authors popup.nrat_date 2020-04-02 Close