|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Influence of lignosulfonic acids on the formation of magnetoactive compound in the redox reaction of iron(II) with chromate-anionстатья
Дата последнего поиска статьи во внешних источниках: 16 января 2019 г.
- Авторы: Kuzyakov Nikolay Yu, Veshnyakov Viacheslav A., Khabarov Yuriy G., Pankina Galina V.
- Журнал: International Journal of Engineering and Technology(UAE)
- Том: 7
- Номер: 2.23
- Год издания: 2018
- Издательство: Science Publishing Corporation Inc
- Местоположение издательства: Ras al Khaimah, UAE
- Первая страница: 21
- Последняя страница: 23
- Аннотация: Chromium and its compounds are widely used in various industries. Wastewater from industrial enterprises using chromium compounds are subject to complete disposal at treatment facilities. The possibility of synthesizing a magnetoactive compound by oxidizing part of Fe(II) cations with chromate-anions in the presence of lignosulfonates was investigated. The magnetic activity was measured on Gouy balance, magnetic characteristics were determined by the magnetic granulometry method. It has been shown that the interaction of Fe(II) cations with chromate-anions passes with the formation of an water soluble intermediate without redox transformations at pH 3.4. Using method of the isomolar series, it was determined that the ratio of chromate-ions and Fe(II) cations in the intermediate is 1:2.33. The in-termediate solution is stable for a long time. Synthesized magnetoactive compound samples are ferrimagnets. The use of lignosulfonate and the synthesis with heating can achieve a higher magnetic activity of magnetoactive compound. The optimal lignosulfonate consump-tion is 0.7 g/g Fe.
- Добавил в систему: Панкина Галина Викторовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 2018-2-IJETUAE-11875.pdf | 356,6 КБ | 19 октября 2018 [Pankina_Galina] |