STUDY OF THE MODES OF RECOVERY AND DESTRUCTIBILITY OF CHROME BRIQUETTES UNDER CURRENT AND THERMAL LOADS

For an objective assessment of the recoverability of the resulting oxidized materials and deciphering the physico-chemical characteristics of their reduction processes occurring during the smelting of carbonaceous ferrochrome, special studies are needed. In this regard, the kinetics of the briquette reduction process has been studied in this article, which is extremely important for understanding the mechanism of carbothermic reduction in order to improve metallurgical technologies using coated materials. During the study, 6 different variants of briquettes with chromium ore and various types of carbon reducing agents were studied, such as China coke, Shubarkolsky special coke, Borlinsky coal and Shubarkolsky coal. The degree of chromium reduction was studied in the Tamman furnace by thermogravimetric method at temperatures of 1200; 1300; 1400; 1500; 1600 ° C for 1 hour. This article also provides calculations to determine the degree of reduction of chromium and iron using the Yander and Gistling-Brownstein equations. Of the six briquette variants, the best results in studying the kinetics of reduction of chromium ore raw materials were obtained using briquettes № 1, 3, 5. The study emphasizes the critical importance of understanding the reduction and destructibility modes of chromium briquettes to optimize the melting processes of carbon ferrochrome. The conclusions from this study are key to the development of both scientific understanding and practical applications in the metallurgical industry. This article summarizes the main results and meanings of the authors’ research, emphasizing its contribution to improving the efficiency and quality of carbon ferrochrome production through the systematic study of reduction behavior in chrome ore briquettes. Keywords: ferrochrome, chrome briquettes, coal, coke, degree of reduction, Yander equation, Gistling-Brownstein equation.