ПОВЕРХНОСТНЫЕ АДСОРБЦИОННЫЕ ЦЕНТРЫ ШЛАКОВЫХ СОРБЕНТОВ
Електронний архів E-archive DonNTU – (Electronic archive Donetsk National Technical University)
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
ПОВЕРХНОСТНЫЕ АДСОРБЦИОННЫЕ ЦЕНТРЫ ШЛАКОВЫХ СОРБЕНТОВ
SUPERFICIAL ADSORPTION CENTERS OF SLAG SORBENTS |
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| Creator |
Хоботова, Элина Борисовна
Грайворонская, Инна Валериевна |
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| Subject |
органический краситель
шлак аморфная фаза адсорбция adsorption organic dyes amorphous phase slag |
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| Description |
Показано наличие гидроксильных и силанольных групп на поверхности шлаковых частиц. Рекомендована кислотная активация шлаков, что увеличивает количество адсорбционных центров ОН и Si–ОН.
The mineralogical composition of metallurgical slag was studied. The possibility of using of slags with diopside as the main mineral constituent in the role of sorbents for water purification has been shown. The slag sorption activity is caused by high content of diopside in amorphous state. The possibility of slag sorption of organic substances was shown. To increase the degree of decreasing the surface, increasing the number of compounds in amorphous state and increase of adsorption capacity of slag, it is necessary to conduct its chemical activation. Optimum conditions for chemical slag activation were defined. It was shown that acid and alkaline slag activation can be used in different regimes of organic dyes sorption. The dependence of quantitative indices from acidity of organic dyes solutions was determined. A presence of hydroxylic and silanolic groups on the surface of slags particles have been shown. The acid activating of slags that increases the amount of adsorption centers OH and Si–OH have been recommended. The large degree of hydratation, hydroxylating and concentration of siloksan groups and groups of Al–O–Si on the surface granular slag of «ArselorMittal» as compared to metallurgical slags on the basis of diopside has been shown. The presence of admixture of aluminum in slags gives the surfaces of silicates properties of chemical sorption in relation to the molecules of electron donors. |
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| Date |
2013-04-11T16:01:38Z
2013-04-11T16:01:38Z 2013 |
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| Type |
Article
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| Identifier |
2074-6652
УДК 541.183 http://ea.donntu.edu.ua/handle/123456789/18409 |
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| Relation |
Наукові праці ДонНТУ;Серія: Хімія і хімічна технологія, 2013. - Вип.1(20). - С.140-147
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| Publisher |
Донецк, ДонНТУ
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