TECHNOLOGY OF OBTAINING IRON POWDERS BY THERMAL TREATMENT OF IRON OXIDE-CONTAINING METALLURGICAL WASTE USING HYDROGEN

In this work, sources of iron-containing waste in Uzbekistan, their current processing technologies, iron oxide recovery methods and analysis of the main parameters of the process, areas of application of iron powder, requirements, brands, classifications of iron powder, working conditions of the experiment, CM using hydrogen gas 1.6 The parameters of thermal treatment in a 5-zone furnace, the results of X-ray fluorescent analyzer analysis of experimentally obtained samples, and the discussion of the analysis result are given. In the study, comparing the duration of the main parameters reduction and oxidation, it was found that both conversion rates at low temperatures are lower than at high temperatures for several cycles. At 800 °C cycle-to-cycle reduction times increased by about 2.2% and oxidation times by about 11%, while at 850 °C, reduction times increased by about 3% and oxidation times by about 4.5% per cycle. At 900 °C, however, the loss of reactivity in the cycle was only 1% for reduction and less than 1% for oxidation.