Non-stationary effects can be widely used as an intensifying factor in technological processes and as a tool for studying chemical systems. Studies of energy effects on structural transformations in liquid systems can make it possible to significantly intensify many chemical and metallurgical processes. We have studied the solubility of aluminum, iron and molybdenum in alkaline solutions under the influence of alternating electric current. A two-electrode cell was used. The electrodes were made from dissolved metal. The frequency of the electric current varied from 20 to 200,000 Hz. In the process of dissolving aluminum in an alkaline solution at the same current frequency and alkali concentration, the mass loss of the aluminum sample increases with increasing current strength up to 0.042-0.044 g. A further increase of current practically blocks the dissolution of aluminum - the change in mass was 0.005-0.007 g of Al. Increasing the alkali concentration to 5.7% KOH significantly reduces the dissolution of aluminum, the weight loss is 0.009 g. The entire surface of the electrodes is covered with a film after 6 hours of dissolution. An analysis of the phases on the aluminum surface showed that the film is a phase based on potassium. The thickness of the potassium film varies depending on the depth of immersion of the electrodes in the solution and on the time of the experiment. The structure and composition of potassium and aluminum compounds could not be established.

The article shows examples of the use of Aspen Hysys software for optimization of the AVT-3 and AT-2 crude oil distillation units at Atyrau Oil Refinery. The Aspen Hysys software was implemented at the Atyrau Refinery for the first time.Calculations were carried out to optimize AVT-3 and AT-2 crude distillation units of the Atyrau refinery with the construction of a model in Aspen Hysys. As a result of the calculations, the possibility of improving the efficiency of individual parts of units was revealed, pilot runs on the units were carried out to confirm. During the pilot run on the AVT-3 unit, a restriction was revealed on regulating the temperature of the cube of the steam column, which affects the stabilization of the kerosene fraction beginning boiling point. During the pilot run at the AT-2 unit, it was revealed that an increase in steam consumption in the main atmospheric oil distillation column contributes to a decrease in the content of light fractions in straight-run fuel, while the yields of gasoline and kerosene-gasoil fractions increase. Thus, the positive effect of Aspen Hysys application at the Atyrau refinery for optimization of crude oil distillation units and identification of technological limitations is shown.

Honey production in our country has increased compared to the last decade. East Kazakhstan, Almaty and South Kazakhstan regions are the main producers of honey. The floral diversity of our country makes it possible to obtain many types of monofloral honey and several combinations of polyfloral honey. Floral origin is one of the most important factors influencing the honey market. Monofloral honey is more popular among consumers due to its taste, special characteristics and is more profitable for producers due to its high price. Darker honey (buckwheat honey) usually contains high amounts of antioxidants, which increase its health potential. Food control is a major factor for consumers who want to know that their purchases are of high quality. To ensure that the actual composition of the products indicated on the label, analysis and development of effective methods of analysis is necessary. Therefore, the aim of this study is to identify biomarkers of buckwheat honey by vacuum solid phase microextraction (vac-SPME) in combination with gas chromatography-mass spectrometry (GC-MS).

The white Portland cement WPC-1-500-D0 has been studied by us and consists of the following minerals, wt%: alite – 50.4; belite – 20.0; celite – 0.9; felite – 16.7; gypsum – 7.0. The four of one minerals are clinker, and the last is involved into the cement during its grinding.

Using X-ray phase analysis (XRP), it has been found that alite and belite have a crystalline structure, and felite has a glassy structure. Amorphism of felite is the result of high-temperature clinker has been cooled rapidly with water. The composition of clinker contains impurity of individual ions in form (Fe³⁺, Na⁺, K⁺, Mg²⁺, Ti⁴⁺, Mn²⁺, Cu²⁺), which are involved in the structure of clinker minerals; they do not create independent connections and do not remain in a free state. Moreover, Na⁺, K⁺, Mg²⁺, and possibly Ti⁴⁺, Mn²⁺ ions are mainly concentrated in the structure of silicate minerals, while Fe³⁺ and other chromophores in the consistance of calcium alumino-ferrites. Because of this, the values of interplanar distances (d) are shifted towards smaller and larger numbers than the reference ones. According by this situation, clinker minerals are their solid solutions. The physical and mechanical properties of white Portland cement WPC-1-500-D0 meet the technical requirements in accordance with GOST 965-89. “White Portland cement. Technical Specifications". However, due to the high content of felite (3CaO·Al₂O₃) – 16.7%, independent compounds of the 3CaO·Al₂O₃·6H₂O type can be created, which will significantly reduce the durability of materials and products made on the basis of this white Portland cement. Therefore, it is strongly recommended to check all white Portland cements entering the Republic of Kazakhstan for changes in strength, frost-resistance and corrosion resistance.

The synthesis of N,N-Diethyl-2-(mesitiylamino)-N-benzyl-oxoethanamonium chloride was carried out by N-alkylation with traditional method and using microwave and ultrasonic activation. The synthesized ionіс compound is characterized by IR, NMR ¹H and ¹³C methods, and its growth-stimulating activity has been tested on Zea Mays L. maize seeds. The synthesis of N,N-Diethyl-2-(mesitilamino)-N-benzyl-oxoethanamonium chloride using unconventional methods such as microwave and ultrasonic activation resulted in higher yields in a shorter period of time than traditional method. The highest yield (98%) was achieved by microwave activation of UWAVE-2000 in a very short time, while in the classical caseit was lower and the reaction time was twenty-four times longer. The synthesized ionic compound positively influenced the germination and growth energy of maize seeds. In samples treated with solution N,N-Diethyl-2-(mesitylamino)-N-benzyl-oxoethanaminium chloride of mould lesions was not so many, so, the treatment of maize seeds with trimecaine benzyl chloride not only stimulates the plant growth, but also prevent fungi mould formation.

This article deals with families of regular graph theories. Using invariants of regular graph theory, a criterion for e-minimality, a-minimality, and α-minimality of subfamilies of the family of all regular graph theories is obtained. These ranks and degrees play a similar role for families of theories with hierarchies for definable theories, such as Morley's Hierarchies for a fixed theory, although they have their own peculiarities. The rank of families of theories can be thought of as a measure of the complexity or richness of these families. Thus, by increasing rank by expanding families, we produce richer families and get families with infinite rank, which can be considered "rich enough". The ranks for families of the theory of regular graphs with finite and infinite diagonals are described. The family of all regular graph theories has infinite rank. This follows from the fact that if a language consists of m-ary symbols, m≥2, then the family of all theories of the given language has an infinite rank. This also means that the family of all regular graph theories is not e-totally transcendental. The results obtained can be considered as a partial answer to the question posed in [5].

This article describes the positive experience of applying an integrated approach in planning and drilling horizontal wells with geosteering in the fields of Embamunaigas JSC (most of which have entered the late stage of development, with a steady increase in hard-to-recover hydrocarbon reserves) in order to achieve maximization of oil production. In this article we present a comprehensive horizontal well placement approach which comprises the following key elements: Interpretation of 3D seismic and the use of logs of nearby wells and a 3D static model for well trajectory planning; following a pre-agreed geosteering procedure while drilling, on-site analysis of cuttings and LWD data to adjust the well trajectory and, thereby, optimize well placement. The extent of field development drilling activity of the objects, production drilling of the main development object and the need of horizontal section well placement in the area of the existing element of the development of the object impose certain restrictions on the drilling of horizontal wells. Well placement is one of the best solution to increase production and extend of brawn field life.