Mathematical modeling of iron(III) ion equilibrium for removing heavy nonferrous metals from sulfate solutions / Ikanina E. V.,Markov V. F. // THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING. - 2017. - V. 51, l. 1. - P. 45-51.

ISSN/EISSN:

0040-5795 / 1608-3431

Type:

Article

Abstract:

The possible ionic equilibria in Fe-2(SO4)(3) water solutions were considered and the most probable of them were determined. Mathematical model of complexation in Fe-2(SO4)(3) solutions was developed. In this model, the ions that cause a change in the solution pH were taken into account and the generally accepted assumptions on the negligible concentrations of particles, stability constants of which are low, are not included in the model. Based on the model, the calculations of iron distribution by the ionic forms in Fe-2(SO4)(3) solutions with different concentrations were done with the accuracy of a few hundredths. The reliability of the proposed mathematical description of iron(III) ion equilibria was confirmed experimentally. The process of iron(III) transformation to the required complex form by mathematically predicted change of solution composition was shown. The targeted recharge of complex particles was used as a basis for separating iron(III) and heavy nonferrous metals based on the available ion-exchange resins.

Author keywords:

mathematical model; ionic equilibrium; iron(III); heavy nonferrous metals; ion exchange separation HYDROLYSIS

DOI:

10.1134/S0040579517010080

Web of Science ID:

ISI:000395065600005

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1608-3431
Keywords-Plus	HYDROLYSIS
Research-Areas	Engineering
Web-of-Science-Categories	Engineering, Chemical
Author-Email	ikael@yandex.ru
ResearcherID-Numbers	Ikanina, Elena/E-1798-2014
ORCID-Numbers	Ikanina, Elena/0000-0001-9443-9097
Funding-Acknowledgement	Program of the Development of Ural Federal University
Funding-Text	This study was supported by the Program of the Development of Ural Federal University in Support of Young Scientists.
Number-of-Cited-References	12
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	3
Journal-ISO	Theor. Found. Chem. Eng.
Doc-Delivery-Number	EM1GH