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Scientific and Technological Foundations of Improvement of the Resource Efficiency of Electroflotation Recovery of Poorly Soluble Inorganic Compounds (Oxides, Carbides, Hydroxides) from Aqueous Electrolyte Solutionsстатья
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: 8 января 2021 г.
- Авторы: Kolesnikov A.V., Meshalkin V.P., Davydkova T.V., Kolesnikov V.A.
- Журнал: Doklady Physical Chemistry
- Том: 494
- Номер: 1
- Год издания: 2020
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 55
- Последняя страница: 61
- DOI: 10.1134/S001250162009002X
- Аннотация: Electroflotation was studied in the systems H2O–TiO2, H2O–Ti3N4, H2O–SiC, carbon materialpowders‒H2O, and some others. The degree of recovery in these systems did not exceed 10–20% for 30 minof flotation in the electrolytes NaCl and Na2SO4 over a wide pH range, which was due to the small particlesize of the dispersed phase and the hydrophilic properties of the surface of the powders. Introduction of thecoagulants FeCl3 and AlCl3 and compositions containing surfactants to the system intensified the flotationand increased the degree of recovery in the above systems to 90–96%. For the first time, the rate constants Kfor electroflotation processes were calculated for typical dependences α = f(τ). With taking into account theK values and the degrees of recovery, efficiency criteria for electroflotation processes were determined for fivemain groups. The results of this work are important for choosing a technology for treatment of liquid industrial waste containing titanium compounds.
- Добавил в систему: Иванов Иван Андреевич