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Changes in thermodynamic functions in the two-temperature process of concentration and purification of electrolyte solutions on KB-4P2 polymethacrylic ioniteстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Karpyuk E.A., Korotkikh O.I., Ivanov V.A.
- Журнал: Russian Journal of Physical Chemistry A
- Том: 86
- Номер: 2
- Год издания: 2012
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 184
- Последняя страница: 189
- DOI: 10.1134/S003602441202015X
- Аннотация: Temperature dependences of the differential Gibbs energies and sorption enthalpies of water on KB4P2 polymethacrylic ionite in Ca2+, Mg2+, Ni2+, and Na+ forms are determined. It is shown that during the twotemperature concentration and purification of electrolyte solutions, the content of the so called “free” water in the ionite, the absorption of which by the latter is characterized by very low differential values of the Gibbs energy and enthalpy, changes with a change in the temperature of the polymethacrylic cationite suspension and electrolyte solution. It is established that the rather energyconsuming step of heating the phase of ionite and solution contributes mainly to the enthalpy of this process. Equations for the temperature dependences of the activity of water for solutions of sodium, magnesium, calcium, and nickel chlorides of various concentrations are given.
- Добавил в систему: Карпюк Екатерина Анатольевна
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