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ОСОБЕННОСТИ ИЗВЛЕЧЕНИЯ НЕОДИМА ИНТЕРГЕЛЕВОЙ СИСТЕМОЙ НА ОСНОВЕ ГИДРОГЕЛЕЙ ПОЛИМЕТАКРИЛОВОЙ КИСЛОТЫ И ПОЛИ-4-ВИНИЛПИРИДИНА
(2020-01-01)
Talkybek Jumadilov
;
Zamira Malimbayeva
;
И. С. Сапарбекова
;
R. G. Kondaurov
;
А. М. Imangazy
As a result of the remote interaction of the studied hydrogels, their mutual activation occurs, leading to a significant change in their electrochemical and conformational properties. At certain ratios of acidic and basic hydrogels, there is a significant increase in the sorption of neodymium ions compared to the original hydrogels. These results indicate the emergence of ionized structures with optimal conformation. References [1] Alimbekova B.T., Korganbayeva Zh.K., Himersen H., Kondaurov R.G. and Jumadi- lov T.K. // J. Chem.Chem. Eng. 2014. Vol. 8, № 3. P. 265-269.[2] DzhumadilovT.K.,Abilov Zh.A., Kondaurov R.G. Vlijanie vzaimnoj aktivacii gidrogelej polimetakrilovoj kisloty i poli-2-metil-5-vinilpiridina na sorbcionnuju sposobnost' intergelevoj sistemy po otnosheniju k ionam lantana // Himicheskij zhurnal Kazahstana. 2014. № 4. S. 128-135.[3] Jumadilov T.K., Kaldayeva S.S., Kondaurov R.G., Erzhan B., Erzhet B. // Proceedings of symposium ICSP&AM3. Tbilisi, 2013. P. 191-196.[4] Jumadilov T.K. // Proceedings of the International Conferenceof Lithuanian Chemical Society “Chemistry and Chemical Technology”. Kaunas, 2014. P. 226.[5] Alimbekova B.T., Dzhumadilov T.K., Korganbaeva Zh.K., Erzhan B., Erzhet B. // Bulle-tin d'EUROTALENT-FIDJIP. 2013. Vol. 5. P. 28.[6] Dzhumadilov T.K., Abilov Zh.A., Kondaurov R.G., Himersen H., Ahylbekova M.A. Disttancionnoe vzaimodejstvie gidrogelej v intergelevoj sisteme gidrogel' poliakrilovoj kisloty – gidrogel' poli-2-metil-5-vinilpiridina // Himicheskij zhurnal Kazahstana. 2015. № 2. S. 79-84.
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Ion Exchange Dynamics in Cerium Nitrate Solution Regulated by Remotely Activated Industrial Ion Exchangers
(Multidisciplinary Digital Publishing Institute, 2021-06-23)
Talkybek Jumadilov
;
L.K. Yskak
;
А. М. Imangazy
;
О. V. Suberlyak
Many technological solutions contain valuable components as waste and can become an additional source of rare-earth elements to meet the needs of modern production. The development of technologies based on commercially available and cheap sorbents reveals the possibility for rare earth recovery from various solutions. This paper provides research on using a combination of KU-2-8 and AV-17-8 ion exchangers in different molar ratios for cerium ions sorption from its nitrate solution. The mutual activation of the ion exchangers in an aqueous medium provides their transformation into a highly ionized state by the conformational and electrochemical changes in properties during their remote interaction. The ion exchange dynamics of solutions were studied by the methods of electrical conductivity, pH measurements, and atomic emission analysis of the solutions. The research showed that the maximum activation of polymers was revealed within the molar ratio of KU-2-8:AV-17-8 equal to 3:3. In more detail, in comparison to AV-17-8, this interpolymer system showed an increase in the sorption degree by more than 1.5 times after 6 h of interaction. Moreover, compared with KU-2-8, the same interpolymer system showed an increase in the degree of cerium ions sorption by seven times after 24 h of interaction. As a result, the total cerium ions sorption degree after 48 h of sorption by individual KU-2-8 and AV-17-8 was 38% and 44%, respectively, whereas the cerium ions sorption degree by the same interpolymer system in the molar ratio 3:3 became 51%. An increase in the sorption degree of cerium ions by the interpolymer system in comparison with individual ion exchangers can be explained by the achievement of a high ionization degree of ion exchangers being activated in the interpolymer system by the remote interaction effect.
Цитирования (OpenAlex) 21Цитирования (OpenCitations) 21
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Impact of Neodymium and Scandium Ionic Radii on Sorption Dynamics of Amberlite IR120 and AB-17-8 Remote Interaction
(Multidisciplinary Digital Publishing Institute, 2021-09-18)
Talkybek Jumadilov
;
Bakytgul Totkhuskyzy
;
Zamira Malimbayeva
;
R. G. Kondaurov
;
А. М. Imangazy
The aim of the work is to provide a comparative study of influence of ionic radii of neodymium and scandium ions on their sorption process from corresponding sulfates by individual ion exchangers Amberlite IR120, AB-17-8 and interpolymer system Amberlite IR120-AB-17-8. Experiments were carried out by using the following physicochemical methods of analysis: conductometry, pH-metry, colorimetry, and atomic-emission spectroscopy. Ion exchangers in the interpolymer system undergo remote interactions with a further transition into highly ionized state. There is the formation of optimal conformation in the structure of the initial ion exchangers. A significant increase of ionization of the ion-exchange resins occurs at molar ratio of Amberlite IR120:AB-17-8 = 5:1. A significant increase of sorption properties is observed at this ratio due to the mutual activation of ion exchangers. The average growth of sorption properties in interpolymer system Amberlite IR120:AB-17-8 = 5:1 is over 90% comparatively to Amberlite IR120 and almost 170% comparatively to AB-17-8 for neodymium ions sorption; for scandium ions sorption the growth is over 65% comparatively to Amberlite IR120 and almost 90% comparatively to AB-17-8. A possible reason for higher sorption of neodymium ions in comparison with scandium ions is maximum conformity of globes of internode links of Amberlite IR120 and AB-17-8 after activation to sizes of neodymium sulfate in an aqueous medium.
Цитирования (OpenAlex) 14Цитирования (OpenCitations) 9
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Specific features of praseodymium extraction by intergel system based on polyacrylic acid and poly-4-vinylpyridine hydrogels
(2021-09-27)
Talkybek Jumadilov
;
Zamira Malimbayeva
;
Kh. Khimersen
;
И. С. Сапарбекова
;
А. М. Imangazy
Some technological solutions contain valuable components and can become an additional source of rare-earth elements to satisfy the current production demands. This research provides the study on using a combination of polyacrylic acid hydrogel (hPAA) and hydrogel of poly-4-vinylpyridine (hP4VP) in different molar ratios for praseodymium ions sorption from its nitrate solution. The mutual activation of the hydrogels in an aqueous medium provides their transformation into a highly ionized state by the conformational and electrochemical changes in properties during their remote interaction. The electrochemical properties of solutions were studied by the methods of electrical conductivity, and pH measurements of the solutions. The research showed that the maximum activation of hydrogels was revealed within the molar ratio of hPAA:hP4VP equal to 1:5. Moreover, the total praseodymium ions sorption degree after 24 hours of sorption by individual hPAA and hP4VP was 54 % and 47 %, respectively, whereas the praseodymium ions sorption degree by the hPAA–hP4VP intergel system in the molar ratio 1:5 became 62 %. A slight increase in the sorption degree of praseodymium ions by the intergel system in comparison with individual hydrogels can be explained by the achievement of a higher ionization degree of hydrogels being activated in the hPAA–hP4VP interpolymer system by the remote interaction effect.
Цитирования (OpenAlex) 9Цитирования (OpenCitations) 9
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Anomalous Sorption of Neodymium and Praseodymium Ions by Intergel System Polyacrylic Acid Hydrogel – Poly-4-Vinylpyridine Hydrogel
(Lviv Polytechnic National University, 2022-02-10)
Talkybek Jumadilov
;
R. G. Kondaurov
;
А. М. Imangazy
;
Kh. Khimersen
;
Zamira Malimbayeva
This paper is devoted to study of sorption properties (sorption degree, polymer chain binding degree) of intergel system hydrogel of polyacrylic acid (hPAA) – hydrogel of poly-4-vinylpyridine (hP4VP) in relation to neodymium and praseodymium ions. It was found that remote interaction of the polymers in intergel pairs provides significant changes of the electrochemical and volume gravimetric properties. Strong increase of the swelling degree of hPAA is observed at the ratio 17%hPAA-83%hP4VP; significant increase of swelling degree of hP4VP is observed at the ratio 83%hPAA-17%hP4VP. Individual hydrogels of PAA and P4VP do not have sufficiently high sorption properties – sorption degree of neodymium and praseodymium ions is not higher than 65 %, polymer chain binding degree is not higher than 55 %. High ionization of hPAA and hP4VP due to remote interaction effect provides significant increase (up to 30 %) of the sorption properties. Maximum sorption of neodymium and praseodymium ions occurs at the ratios 83%hPAA-17%hP4VP and 50%hPAA-50%hP4VP (sorption degree is 93.5 % and 93.6 %, respectively). The highest values of polymer chain binding degree (in relation to neodymium and praseodymium ions) are observed at the ratios 83%hPAA-17%hP4VP and 50%hPAA-50%hP4VP – binding degree is 73.2 % and 75.4 %, respectively. Remote interaction provides possibilities for creation of innovative sorption technologies for selective sorption of aimed rare-earth elements.
Цитирования (OpenAlex) 1
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Comparative Characteristics of Polymethacrylic Acid Hydrogel Sorption Activity in Relation to Lanthanum Ions in Different Intergel Systems
(Lviv Polytechnic National University, 2022-09-30)
Talkybek Jumadilov
;
Zamira Malimbayeva
;
L.K. Yskak
;
О. V. Suberlyak
;
R. G. Kondaurov
Phenomena of remote interaction in intergel systems polymethacrylic acid hydrogel – poly-4-vinylpyridine hydrogel (hPMAA-hP4VP) and polymethacrylic acid hydrogel – poly-2-methyl-5-vinylpyridine hydrogel (hPMAA-hP2M5VP) have been studied. It was found that there is a decrease of specific electric conductivity, pH and swelling degree of PMAA, P4VP, P2M5VP hydrogels during lanthanum ions sorption by the intergel systems. Significant increase of sorption properties (up to 30 %) in intergel systems comparatively with individual hydrogels of PMAA, P4VP, P2M5VP points to the fact of high ionization during mutual activation of the polymers. Maximum sorption of lanthanum ions occurs at the ratios of 17%hPMAA:83%hP4VP and 50%hPMAA:50%hP2M5VP. Data on obtained IR spectra evidence to the sorption of the rare-earth metal by these intergel systems. The obtained results show a significant importance of possible application of intregel systems based on rare-crosslinked polymer hydrogels of acid and basic nature for creation of new innovative sorption technologies in hydrometallurgy.
Цитирования (OpenAlex) 2Цитирования (OpenCitations) 4
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Anomalous Sorption of Yttrium Ions by the Mutual Activated Hydrogels in the Interpolymer System of Poly(Methacrylic Acid) and Poly(4-Vinylpyridine)
(Lviv Polytechnic National University, 2023-03-26)
Talkybek Jumadilov
;
Bakytgul Totkhuskyzy
;
А. М. Imangazy
;
Juozas V. Gražulevičius
This paper considers the effect of mutual activation of poly(methacrylic acid) (PMAA) and poly-(4 vinylpyridine) (P4VP) hydrogels during their remote interaction on the degree of yttrium ions sorption from an aqueous medium. Electrochemical properties were studied by conductometry and pH measurements to predict the activation possibility of these hydrogels. pH measurements showed that at 0.1 hour, the pH values were the lowest, indicating a high content of H+ ions in the aqueous solution. An increase in the interaction time to 24 hours leads to an increase in pH values, indicating a decrease in the content of H+ ions in the solution. The dependences of the specific electrical conductivity were studied. The experiments showed that the maximum values were observed at the ratios of 3 : 3 and 1 : 5 (gPMAA : gP4VP), which coincided with the result of pH measurements. The obtained results indicate the significant changes occurred in the electrochemical and conformational values of the initial macromolecules in the interpolymer system. Our research confirms the presence of remote interaction between hydrogels and their mutual activation.
Цитирования (OpenAlex) 8Цитирования (OpenCitations) 5

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