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Papers by Zaynobiddin Matkarimov

E3S Web of Conferences

The conducted studies on the concentration of brine from lakes Karaumbet and Barsakelmes under co... more The conducted studies on the concentration of brine from lakes Karaumbet and Barsakelmes under conditions close to industrial ones showed the possibility of obtaining practically pure sodium chloride and magnesium chloride melt. To do this, the evaporation process must be carried out in two stages. The evaporation to a density of 1.550 g/sm3 increases the content of magnesium chloride from 7.20% to 28.24%. At the same time, the content of sodium ions decreases from 8.05% to 0.91%. The evaporation at the first and second stages must be carried out to a density of 1.340-1.345 g/sm3, which contributes to the release of sodium chloride into the precipitate. The evaporation of the mother liquor makes it possible to obtain practically pure sodium chloride. The content of magnesium chloride after evaporation in the first stage is 15-16%.

Springer Proceedings in Materials, 2022

Springer Proceedings in Materials

Journal of critical reviews

The article considers the inevitability of copper losses with slag and the possibility of reducin... more The article considers the inevitability of copper losses with slag and the possibility of reducing them by various methods and using local secondary technogenic formations. It has been established that the developed and widely used in industry technologies for decopperizing of slag only partially solve the problem and lead to significant irretrievable losses of metal with dump slag. The main factors affecting the magnitude of the casualties are established, and suggestions for reducing their negative impact are recommended. The use of perfect mixing devices is recommended, as in this case, it is possible to achieve a maximum reduction in the residual concentration of copper in the waste slag. Together, it is possible to make an increase in the complexity of the use of raw materials with the organization and implementation of low-waste technology.

$Research paper thumbnail of Methods of Protection Against Destruction of Refractory Materials Used for Lining of Autogenous Smelting Furnaces$

Advances in Sustainability Science and Technology, 2021

In the article, the technology to protect fire-resistant materials of metallurgical melting furna... more In the article, the technology to protect fire-resistant materials of metallurgical melting furnaces against any destruction is considered. In work, it has offered previously targeting skull, or on a fire-resistant laying in the period of its bookmark to apply a copper grid and a tax on it as a positive charge obtained from an external direct-current power source. Simultaneously, positively charged ions of metals will make a start infusion, and further the complicated silicon-oxygen anion complexes will densely adjoin to a positively charged skull. They will not allow them to collapse due to the abrasive influence of burdening materials.

METAL 2020 Conference Proeedings, 2020

The study relates to the processing of zinc-containing wastes of metallurgical production using p... more The study relates to the processing of zinc-containing wastes of metallurgical production using products of joint pyrolysis of polyethylene wastes and wood pods. The process is carried out in two stages: preparation of polyethylene waste for the operation and then the recovery process. Zinc-containing wastes are thickened, dehydrated to a moisture content of not more than 10-13%, mixed with a reducing agent. Dehydrated Zinccontaining wastes (cake or sludge) are mixed with synthetic reducing agents in a mass ratio cake-artificial reducing agent from 8.8: 2.2 to 8.2: 2.8, respectively, and pelletized. They carry out reductive heat treatment of pelletized waste in the presence of a reliable carbon-containing reducing agent in the amount of 20-40% by weight of the processed waste and the resulting products of the combined pyrolysis of polyethylene waste and wood pods with counter current air blasting in a rotary kiln, distillation of zinc and trapping of sublimates to produce zinc oxides. Moreover, before igniting a reliable, reducing agent and pyrolysis products of polyethylene wastes (synthetic reducing agent), gaseous fuel is burned in the working volume of the furnace. This study will increase the intensity of the processes of sublimation of zinc and reduction of iron, increase the degree of utilization of polymer waste.

Austrian Journal of Technical and Natural Sciences, 2016

METAL 2022 Conference Proeedings

The article deals with the thermodynamics of the process in the ore-thermal processing of copper ... more The article deals with the thermodynamics of the process in the ore-thermal processing of copper smelting slag, the experimental study of ore-smelting processing of copper smelting slag, and the development of a mathematical model for obtaining iron-containing alloys from copper slag, development of a technological scheme for obtaining iron-containing alloys from copper slag-information on the application and approbation of the technology in the production of the results. The assessment of the possible direction of the carbothermic reactions that take place between the oxidised compounds in the slag and the carbon was carried out by changing the thermodynamic values of the system. Thermodynamic analyses were performed, taking into account the temperature dependence of the isobaricisothermal potentials (Gibbs free energy).