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Article
Sorption of Heavy Metal Ions from Water by Natural Apatite Ore
The article shows the efficient use of natural apatite ore in purification of mining industrial wastewaters from heavy metal ions. The determination of adsorption constants, calculation of thermodynamic parame...
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Article
Heat capacity and thermodynamic functions of new cobalt manganites NdM2 I CoMnO5 (MI = Li, Na, and K) in the range of 298.15–673 K
Temperature dependences of the heat capacity of cobalt manganites NdM2 I CoMnO5 (MI = Li, Na, and K) are studied by means of dynamic calorimetry in the range of 298.15−673 K. It is...
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Article
Heat capacity and thermodynamic functions of new cobaltic manganites NdM 2 II CoMnO6 (MII is Mg, Ca, Sr, or Ba) Within the temperature range of 298.15–673 K
The results of thermodynamic studies of the cobaltic manganites NdM 2 II CoMnO6 (MII is Mg, Ca, Sr, or Ba) are presented. In the calorimetric studies of the hea...
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Article
Solidification of the eutectic Ga–Sn alloy
Cyclic thermal analysis is used to study the effect of overheating of the eutectic Ga–8.5 mol % Sn melt on the presolidification supercooling. It is found that, when the liquid eutectic is overheated above the...
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Article
Heat capacities and thermodynamic functions of new cobalt manganites LaM 2 II CoMnO6 (MII-Mg, Ca, Sr, Ba) in the 298.15–673 K temperature range
Temperature dependences of the heat capacities of cobalt manganites LaM 2 II CoMnO6 (MII = Mg, Ca, Sr, Ba) are investigated by means of dynamic calorimetry in t...
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Article
On the interaction of electrochemical and physicochemical indicators of d metal complexes with sulfur-containing ligands
Redox potentials of metal complexes, refraction values, and polarizability indicators of a donor—organic ligand—have been calculated. Correlation dependences between transition constants of outer sphere comple...
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Article
The interaction of thiazolidine-2,4-dione with an aromatic aldehyde under microwave irradiation
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Article
Effect of alternating electric current frequency on the viscosity of coal tar
The results of a study on the effect of alternating electric current on the relative viscosity of coal tar from Shubarkol coal are reported. The optimum conditions of treatment were established. It was found t...
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Article
Simulation of the destructive hydrogenation of coal asphaltene (Short Communication)
Data of the computer simulation of the destructive hydrogenation of coal asphaltene are reported. These data were obtained by quantum-chemical methods for refining the geometric configurations of the asphalten...
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Article
Complexing ability of N-[2-(2-morpholinoacetyl)hydrazinocarbothioyl]benzamide toward iron(II) ions
Qualitative and quantitative assessment of the complexing ability of N-[2-(2-morpholinoacetyl)-hydrazinocarbothioyl]benzamide toward iron(II) ions is given. Stability constants of iron(II) complexes are determine...
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Article
Catalytic hydrogenation of a three-component mixture of polyaromatic hydrocarbons in the presence of iron-containing additives
The results of the catalytic hydrogenation of a three-component anthracene-benzothiophene-biphenyl mixture in the presence of different catalytic additives are given. It was found that the conversion of the mi...
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Article
Cavitation extraction of phenols form coal tar
The results of the chromatographic analysis of coal tar for the concentrations of phenols and their derivatives are given. It was shown that coal tar from AO Sary-Arka Spetskoks is characterized by a high conc...
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Article
Synthesis and complexing ability of N-[2-(2-morpholinoacetyl)hydrazinocarbothioyl]benzamide
The synthesis and identification of N-[2-(2-morpholinoacetyl)hydrazinocarbothioyl]benzamide were performed. A qualitative and quantitative evaluation of its complexing ability to the Ni(II) and Co(II) ions was do...
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Article
Effect of cavitation treatment on the chemical composition of coal tar
The effect of a cavitation attack in the presence of pseudohomogeneous catalyst additives on the chemical composition of primary coal tar was studied. It was found that, upon the introduction of metal salts in...
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Article
Development of a technology for coal conversion in the presence of coal tar
A new process for the hydrogenation of coal in the presence of wide-cut coal tar was proposed; it involves cavitation treatment, mixing with catalytic additives, and heating the resulting mixture at an elevate...
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Article
Synthesis and complex-forming properties of thiazolyl-containing organophosphorus complexone
Alkaline hydrolysis of the previously prepared ethyl 2-methyl-2-[diethylamido-N-(4′-phenylthiazolyl-2-amido)phosphono]glycidate and 2-phenyl-2-[diethylamido-N-(4-phenylthiazolyl-2-amido)phosphono]glycidate accomp...
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Article
Effect of cavitation on the properties of coal-tar pitch as studied by Gas-liquid chromatography
The applicability of the cavitation-wave effect to coal-tar pitch processing is considered. The results of the GLC analysis of the test material before and after rotor-pulsation cavitation treatment are given....
