Possibility of enrichment of ore processing waste from Karagaily and Zheskazgan mining plants by dry separation method

Mustafin, E.S.; Omarov, Kh.B.; Borsynbaev, A.S.; Havlicek, D.; Pudov, A.M.; Kaykenov, D.A.; Muratbekova, A.A.; Sadyrbekov, D.T.; Ainabaev, A.A. (KSU publ., 2020-01-30)

This study aims at review of the effects of dry separation method on the ore flotation efficiency and thoroughly discusses the possibility of waste enrichment by sieving through fine-mesh sieves with sizes (d > 0.4; 0.16 ...
Thermodynamic analysis of ox-idized copper minerals interaction with modified reagent

Katkeeva, G.L.; Burkitseterkyzy, G.; Morozov, Yu.P.; Zhunussov, E.M. (KSU publ., 2020-01-30)

Practicality of preliminary sulphidization of oxidized copper minerals for the purpose of oxidized ore concen-tration is shown in the paper. For the first time the thermodynamic analysis was carried out for interaction of ...
Obtaining of nanocatalizers for low-temperature conversion of oxide carbon (CuO/ZnO/Al2O3) with reduced copper content

Usmanova, M.M.; Dolgov, V.V.; Ashurov, N.R.; Rashidova, S.Sh.; Dadahodzhaev, T. (KSU publ., 2020-01-30)

The main goal of the work was to reduce the content of copper (in terms of copper (II) oxide) in the composition of the conversion catalyst, and to preserve high catalytic and physico-mechanical characteristics. As an ...
Hydrothermal grown iron oxide films on the surface of titanium and conductive glasses and their current characteristics in water photolysis

Seitmagzimov, A.A.; Seitmagzimova, G.M.; Dzhanmuldaeva, Zh.K. (KSU publ., 2020-01-30)

The relevance of photolysis on semiconductor electrodes since the pioneer work of Fujishima and Honda on metallic titanium does not lose sharpness due to new possibilities for developing new materials, such as con-ductive ...
Relationship of associated clusters degree with metal ionization according to the cluster-associate model

Kazhikenova, A.Sh.; Alibiyev, D.B.; Seitimbetova, A.B.; Tentekbayeva, Zh.M. (KSU publ., 2020-01-30)

This article deals with a cluster-associate model of kinematic viscosity of liquid metals. This model was derived from the concept of chaotized particles. According to the proposed model, the authors calculated average ...
Change in the heat of D-glucose dissolution in water exposed to electromagnetic field

Shipunov, B.P.; Ryabykh, A.V. (KSU publ., 2020-01-30)

The article is devoted to the study of the influence of weak electromagnetic fields of 90, 110 and 170 MHz frequency on water properties. The calorimetric measurement of the integral heat of dissolution of non-electro-lyte ...
Study of acid properties of new polymeric complexes of maleic acid polymethylvinyl ether cross-linked by polypropylene glycol

Sarsenbekova, A.Zh.; Khalitova, A.I.; Klimova, T.E.; Khamitova, T.O.; Kudaibergen, G.K.; Figurinene, I.V.; Medeshova, A.T.; Sotchenko, R.K. (KSU publ., 2020-01-30)

Dissociation course of polymethylvinyl ether of maleic acid cross-linked by polypropylene glycol (PMVE-MA with PPG) was investigated using classical potentiometric titration and colloid titration. It is assumed, that ...
Poly(propylene fumarate phthalate) and acrylic acid radical copolymerization constants and parameters

Burkeev, M.Zh.; Zhumanazarova, G.M.; Tazhbayev, E.M.; Kudaibergen, G.K.; Aukadieva, S.B.; Zhakupbekova, E.Zh. (KSU publ., 2020-01-30)

Poly(propylene fumarate phthalate) and acrylic acid radical copolymerization in dioxane solution at various molecular ratios of original monomeric mixture was studied in this work for the first time. An unsaturated polyester ...
Features of the extraction of yttrium and lanthanum with an intergel system based on hydrogels of polyacrylic acid and poly-4-vinylpyridine

Totkhuskyzy, B.; Yskak, L.K.; Saparbekova, I.S.; Myrzakhmetova, N.O.; Jumadilov, T.K.; Gražulevicius, J.V. (KSU publ., 2020-01-30)

To predict the sorption activity and selectivity of hydrogels, the effect of mutual activation of polymer networks in the intergel system was studied. The intergel system of the hydrogel of polyacrylic acid ((hPAA)) and ...
Production of cyclodextrin nanocomplexes based on N'-((5-nitrofuran-2-yl)meth-ylene)isonicotinohydrazide and research of their structure by physical and chemical methods

Nurkenov, O.A.; Dzhalmukhanova, A.S.; Chernyayev, D.A.; Lodygina, V.P.; Komratova, V.V.; Malkov, G.V.; Badamshina, E.R. (KSU publ., 2020-01-30)

In the present work, the supramolecular complexes of N'-((5-nitrofuran-2-yl)methylene)isonicotinohydrazide with β-cyclodextrin (β-CD) and 2-hydroxypropyl-β-cyclodextrin (2-HP-β- CD)were first obtained and studied. The NMR ...
Investigation of isophorone diisocyanate oligoisocyanurate effect on wa-ter dispersible polyurethane properties

Karpov, S.V.; Dzhalmukhanova, A.S.; Chernyayev, D.A.; Lodygina, V.P.; Komratova, V.V.; Malkov, G.V.; Badamshina, E.R. (KSU publ., 2020-01-30)

Oligoisocyanurates (OIC) are the products of various diisocyanates cyclotrimerization reaction, with their func-tionality being more than three (potential crosslinking agents). They are applicable in chemical polymer ...
Antiradical activity and bioprediction of o- and p-hydroxybenzoic acid hydrazide derivatives

Satpaeva, Zh.B.; Nurkenov, О.А.; Schulgau, Z.Т.; Fazylov, S.D.; Burkeev, М.Zh.; Havlicek, D. (KSU publ., 2020-01-30)

This article provides results of evaluation of synthesized biologically active substances 1–4 antiradical activity according to their ability to interact with the 2,2- diphenyl-1-picrylhydrazyl radical (DPPH•). It was found ...
Reaction between guaiacol and glyoxalic acid under microwave irradiation

Selikhova, N.Yu.; Malkov, V.S.; Bakibaev, A.A. (KSU publ., 2020-01-30)

In this paper, we considered the opportunity to use microwave irradiation as an alternative to the convection heating method during the guaiacol condensation reaction with glyoxalic acid in an aqueous solution in the presence ...
Interpolymer complex of biopolymers as a soil structure-forming agent

Mussabayeva, B.Kh.; Kassymova, Zh.S.; Aldabergenova, M.A. (KSU publ., 2020-01-30)

An interpolymer complex based on biopolymers — chitosan (CS) and sodium alginate (AlNa) was synthesized. The chitosan-sodium alginate interpolymer complex was prepared by mixing equimolar solutions of polymers in a given ...
Allantoin: synthesis and chemical properties

Bakibaev, A.A.; Il’yasov, S.G.; Tatarenko, O.V.; Tuguldurova, V.P.; Zorin, A.O.; Malkov, V.S.; Kasyanova, A.S. (2020-01-30)

The availability and multifunctionality of allantoin makes it extremely attractive to unlock the synthetic poten-tial on the basis thereof, especially for the needs of the pharmaceutical industry. Numerous publications on ...

1(97)/2020-Химия

1(97)/2020-Химия

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