The purpose of this work is the metallurgical evaluation of the manganese ore of the Zhaksylyk deposit for the smelting of ferrosilicomanganese. For this, the phase composition of the concentrate was studied by X-ray phase analysis on an Empyrean Malvern Panalytical X-ray diffractometer, where brownite (MnO·3Mn2O3·SiO2) and quartzite (α-SiO2) phases were detected. A certain granulometric composition of the concentrate of sequential sieve analysis, by size 25-10, 10-8, 8-5, 5-3 and 3-0 mm, followed by weighing the size of the classes and calculating their income as a percentage of the total mass of the sample. According to the chemical analysis, the average composition of the manganese concentrate is given, %: Mntotal – 36,93; Fetotal – 6,21; MgO – 0,72; SiO2 – 38,33; CaO – 26,17; Al2O3 – 4,05; Ptotal – 0,042. In Tamman's high-temperature laboratory furnace, a series of crucible melting of ferrosilicomanganese was carried out using manganese concentrate from the Zhaksylyk deposit; the resulting ferrosilicomanganese corresponds to GOST 4756-91 in terms of chemical composition.
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Makhambetov et al. (2024) studied this question.
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