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Synthesis, characterization, and physico-chemical aspects of a new PVC-based quaternary triethanol ammonium chloride anionite for tungsten recovery [PDF]

Turkish Journal of Chemistry
Bahig Atia
exaly   +2 more sources

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Use of Anionites for Water Softening and Demineralization

Materials Science Forum, 2018
In the paper we determined the dependence of the parameters of purified on anionite water on its salt composition, hardness and shape of the anion exchanger used. It is shown that the capacity of the ion exchanger in the CO32- form is higher in chlorides and sulfates than in the OH- -form.
Yuliya A. Omelchuk, Galina V. Kucherik
openaire   +1 more source

Use of Gabriel reaction to obtain anionites

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1975
A study was made of the reaction of the chloromethylated styrene-divinylbenzene copolymers, with gel and macroporous structures, with phthalimide and its derivatives, and also the subsequent polymerlike transformations of the obtained polyimides. The optimum conditions for obtaining weakly basic anionites by the Gabriel reaction were determined.
V. K. Khalikova, E. E. Ergozhin, B. A. Mukhitdinova, S. R. Rafikov   +3 more
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Application of inorganic anionites as catalysts for oxyalkylation of alcohols

Reaction Kinetics & Catalysis Letters, 1991
The low thermal stability of anion exchange resins, which prevents them from being used as catalysts for oxyalkylation of alcohols, can be solved by the application of the inorganic anionite — mercarbide, a promising catalyst.
A. E. Kapustin, V. F. Shvets, M. G. Makarov, A. K. Guskov   +3 more
openaire   +1 more source

Synthesis of Inter-Reticular Anionites for Uranium Sorption

Atomic Energy, 2017
A new method for modifying ion-exchange resins was developed in order to improve the performance of industrial ionites used in the extraction of uranium. It consists in using polymer matrices made from several interpenetrating low-linkage polymer networks, which are obtained by repeated polymerization of a mixture of mono- and divinyl monomers ...
N. V. Balanovskii, L. B. Shurmel’, N. A Tsarenko   +2 more
openaire   +1 more source

Effect of heat treatment on the degradation of fiber anionites

Polymer Science Series B, 2012
The thermal transformations of anionites synthesized on the basis of a polyacrylonitrile fiber are studied. During the heat treatment of the weakly basic anionite FIBAN A-5, the cleavage of amino groups occurs via two routes. In the case of the strongly basic anionite FIBAN A-6, dealkylation and deamination occur during heating and the dealkylation of ...
Yu. G. Yegiazarov, B. Kh. Cherches, E. N. Ermolenko, G. N. Lysenko, L. L. Potapova, A. A. Shunkevich, Z. I. Akulich, E. G. Zalesskaya   +7 more
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Sorption of gallium from the alkali solutions based on anionites

Russian Journal of Non-Ferrous Metals, 2013
The sorption of gallium from alkali solutions on various weakly and strongly basic anionites is studied in dynamic conditions, and the breakthrough dynamic exchange capacity and complete exchange dynamic capacity are investigated. The D-403 selective anionite is selected.
D. E. Chirkst, E. A. Cheremisina, O. V. Cheremisina, M. A. Ponomareva   +3 more
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Temperature effects on the thermodynamic parameters of sorption of germanium on an anionite

Russian Journal of Physical Chemistry A, 2008
The isotherms of sorption of GeO 3 2− on a synthetic sorbent were obtained at various temperatures. A thermodynamic description of the sorption isotherms by an analogue of the Langmuir equation was suggested.
D. E. Chirkst, O. V. Cheremisina, A. A. Chistyakov   +2 more
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Complexation of Cu(II) with Hetarylformazanes in Solutions, Polycrystals, and Modified Anionite

Russian Journal of Coordination Chemistry, 2005
The Cu(II) complexes with hetarylformazanes (HF) formed in solutions, polycrystals, and AN-18 polymeric ionite modified with HF were studied by EPR method and were found to have almost identical structures. The configuration of the Cu2+ coordination surrounding (square-planar or pseudotetrahedral) is specified by the substituents at N1 in formazane ...
Vishnevskaya, G. P., Frolova, E. N., Pervova, I. G., Lipunova, G. N., Gorbatenko, Y. A., Lipunov, I. N.   +5 more
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Hydration of strongly basic anionites: Ab initio calculations

Polymer Science Series B, 2007
For the hydration of isolated and adjacent functional groups of strongly basic anionites, ab initio quantum-chemical calculations have been performed via the molecular fragment method. As counterions, OH−, F−, Cl−, Br−, and I− ions have been tested. It has been shown that Cl−, Br−, and I− ions are strongly bonded to the functional groups. The hydration
V. M. Zelenkovskii, T. V. Bez”yazychnaya, V. S. Soldatov   +2 more
openaire   +1 more source