New Approach to the Synthesis of Polycondensation Ion-Exchange Polymers for Wastewater Treatment

Turabdzhanov, S. M.; Kedelbaev, B. Sh.; Kushnazarov, Pulat Islamovich; Badritdinova, Farida Maxamatdinovna; Vladimirovna,, None Ponamaryova Tatyana; Rakhimova, L. S.

doi:10.32014/2019.2518-170x.56

Cited by 5 publications

(7 citation statements)

References 11 publications

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“…The aim of the study is to clean mine waters from heavy metals, mainly copper, as well as hardness salts of calcium and magnesium using a synthesized ion exchanger [5].…”

Section: Literary Analysis Of Mine Water Treatment Methodsmentioning

confidence: 99%

Perspective Wastewater Treatment from Cu²⁺ Ions in the Mining Industry

et al. 2019

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The synthesis of new cation-exchanger based on local raw materials for the extraction of copper from copper-containing solution investigated. A review of the literature regarding the problem of ion exchange method and the use of mine wastewater treatment process is presented. Sorption selectivity of Cu2+ ions by cation exchanger in the H-and Na-forms from dilute solutions was studied in the target concentration range 90 mg/dm3 and 5,49 g/ dm3. The full dynamic exchange capacity calculated. The cation exchanger analyzed with consideration for IR spectroscopic, chemical analysis, and scanning electron microscopic data. Quantum-chemical calculations performed that synthesized cation-exchanger stable complexes with Cu2+ ions. Obtained cation exchanger due to excellent behavior recommended removing copper ions from wastewater in the mine industry.

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“…The aim of the study is to clean mine waters from heavy metals, mainly copper, as well as hardness salts of calcium and magnesium using a synthesized ion exchanger [5].…”

Section: Literary Analysis Of Mine Water Treatment Methodsmentioning

confidence: 99%

Perspective Wastewater Treatment from Cu²⁺ Ions in the Mining Industry

et al. 2019

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“…Results and discussion. By polycondensation of diphenyloxide and furfural in the presence of poreforming agents, n-heptane and camphor, copolymers of macroporous structure were obtained [18][19]. Properties of obtained ion exchanger depends on degree of crosslink agent and the amount of poreforming agents.…”

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confidence: 99%

“…Gas adsorption can be determined by volumetric, gravimetric, or flux methods. The volume of gas adsorbed on a monolayer over the surface of the particles is determined according to the BET equation (Brunauer et al), and the specific surface area is calculated based on molar volume of the gas and the average area occupied by the gas molecule [18].…”

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confidence: 99%

Syntheses of Cation Exchanger With Macroporosity and Investigating Specific Properties

Alimdjanovna¹,

Turabdzhanov²,

Kedelbaev³

et al. 2020

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN

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Obtained new strongly acid cation exchanger of macroporous structure based on furfural and dipheniloxide. The optimal amount of the poreformed agent and the molar ratio of the reacting substances were determined. Initially results showed that the polymer matrix using camphor as pore forming agent present a uniform surface with inter-connected pores and adding camphor into the polymer matrix could attain more abundant pores than adding n-heptane. We studied the components, surface and pore structures of the сation exchanger by Fourier transform infrared spectroscopy and scanning electron microscopy (SEM). SEM observations showed that the resin abounded in macropores as large as 7.4 to 22.6 µm both in the surface and the interior. The parameters of the porous structure of the samples are calculated using by equation BET (Brauner., at al.) and the total pore volume of ion exchangers and the radius of submicroscopic capillaries were determined. Finally dates testing prototypes under application conditions, allow us to recommend this cation exchanger for sorption of small radius ions at high speed, as fundamentals upon receipt of ion exchangers, etc.

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“…Nevertheless, the use of this method with known ion-exchangers does not allow reducing the content of toxic ions of heavy metals to the norm of the maximum permissible concentration [4]. The solution to this problem can be the use of more efficient cation-exchanger based on polymers modified with various functional groups [5][6][7][8][9][10], for example, carboxyl [9][10][11][12], amine [13], phosphoric acid [7,14,15], akylthiophosphoric [16], sulfogroups [17,18], etc. At the same time, to establish the optimal parameters of the sorption of metal ions, it is necessary to know the kinetic laws and the mechanism of the sorption process.…”

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confidence: 99%

“…In the study, we used two types of cation exchanger -industrial sulfonic cation exchanger grade KU-2-8 (strongly acidic cation exchanger, copolymer of divinylbenzene and styrene, Anta LLC, Russia) and sulfonic cation exchanger obtained by polycondensation of diphenyl oxide and furfural, followed by sulfonation. The synthesis of the latter is described in [17], where the static exchange capacity for copper was 2.4-3.2 mg-eq/g.…”

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confidence: 99%

Kinetics and Mechanism of Sorption of Copper (Ii) Ions by Ion Exchanger

Nazirov¹,

Turabdzhanov²,

Kedelbaev³

et al. 2020

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN JSC «D

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In this article the kinetics of the process of sorption of copper (II) ions from aqueous solutions by polymer sulfonic cation exchanger, an elementary unit containing a heterocycle and a sulfonic group, under static conditions at a temperature of 298 K and a copper concentration of 2 mmol / mg is investigated. The sulfonic cation exchanger was preliminarily obtained by the reaction of polycondensation of diphenyl oxide and furfural with further sulfonation to obtain functional ionogenic groups in order to increase the extraction efficiency. The obtained kinetic curves of the dependence of the degree of extraction of copper ions from solution on time were processed using the Boyd, Adamson, and Myers equation, which describes diffusion in a limited volume of solution. The kinetic parameters of the sorption process (effective diffusion coefficient, etc.) are calculated, and the results obtained are compared with the data for the traditionally used industrial cation exchanger, which is a copolymer of styrene and divinyl benzene. It has been established that the process of sorption of copper (II) ions in the sulfonic cation exchanger phase is of an intra diffusion nature and corresponds to second-order kinetic equations.

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New Approach to the Synthesis of Polycondensation Ion-Exchange Polymers for Wastewater Treatment

Cited by 5 publications

References 11 publications

Perspective Wastewater Treatment from Cu²⁺ Ions in the Mining Industry

Perspective Wastewater Treatment from Cu²⁺ Ions in the Mining Industry

Syntheses of Cation Exchanger With Macroporosity and Investigating Specific Properties

Kinetics and Mechanism of Sorption of Copper (Ii) Ions by Ion Exchanger

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New Approach to the Synthesis of Polycondensation Ion-Exchange Polymers for Wastewater Treatment

Cited by 5 publications

References 11 publications

Perspective Wastewater Treatment from Cu2+ Ions in the Mining Industry

Perspective Wastewater Treatment from Cu2+ Ions in the Mining Industry

Syntheses of Cation Exchanger With Macroporosity and Investigating Specific Properties

Kinetics and Mechanism of Sorption of Copper (Ii) Ions by Ion Exchanger

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Product

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Perspective Wastewater Treatment from Cu²⁺ Ions in the Mining Industry

Perspective Wastewater Treatment from Cu²⁺ Ions in the Mining Industry