CHEMICAL PROBLEMS

Abstract The work deals with the purification process of the oil-contaminated soils. Methods of intensification of molecular surface phenomena when exposed to oil-polluted soil were shown. Removal of the oil pollutant from the surface of mineral particles is a result of a complex action of molecular- surface phenomena (selective wetting, surface energy gradient) and mechanical […]

Abstract The kinetic patterns of the reaction oxidative hydroxyhalogenated alkylcyclohexenes involving hydrogen peroxide and hydrogen halide acids in the liquid phase are considered. The reaction is reversible and has a second order in the forward and reverse directions. The speed of both stages of the process is correlated with the conformational effects of the substituents. […]

Abstract The paper discusses the problems of environmental pollution with harmful chemicals and their adverse effects on ecosystem components. The main sources of harmful chemicals discharged into the atmosphere air, soil and water basins are specified. Potential threats of toxic organic compounds, heavy metals, radionuclides, as well as exhaust gases to both the natural environment […]

Abstract In paper the results of extraction purification of the kerosene fractions with use of ionic liquid based on acetic acid as a selective solvent have been presented. The influence of various factors on process of the selective purification has been investigated and the optimal conditions of dearomatization have been determined. The advantage of ion-liquid […]

Abstract The new representatives of functionally substituted pyrazoles were synthesized and their interactions with secondary amines studied. It found that the interaction of 3,4-bis(diethylamino)but-2- en-1-ones with hydrazine hydrate gave rise to 3-alkyl-5-(diethylaminomethyl)pyrazoles. Appropriate 1- acetyl and 1-(2-chloromethyl carbonyl)pyrazoles were synthesized through the acylation of the last products with acetyl- and monochloroacetyl chloride in the presence […]