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The article examines research on high-temperature reducing roasting of rare-earth-rare metal ores of the Chuktukon deposit. The effect of process temperature and consumption of reducing agent (coke) on distribution of niobium, manganese and phosphorus between metal and slag phases was studied. It was shown that a decrease in coke consumption in the range of 15–19 % promotes an increase in the extraction of niobium and manganese into the slag phase, while the reduction of phosphorus to metal increases with an excessive consumption of the reducing agent.

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