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一前言铌是白云鄂博矿重要的有价元素之一。中贫矿直接入高炉生产稀土实渣作为冶炼稀土合金原料的工艺已被生产所采用。但含铌高砱铁水(Nb=0.15～0.35%,P=2～4%)被当作劣质废铁处理,所以,研究中贫矿铁水提铌、收砱、炼钢是打通包头矿第二流程的重要课题。78年5～7月,包头冶金研究所首先用自制0.5吨氧气底吹转炉从中贫矿铁水中提铌,吹炼40炉,得到 Nb_2O_5=4～6%,Nb/P≥10的底吹铌渣,铌氧化率>80%。底吹渣
A preface Niobium is one of the important valuable elements of the Bayan Obo mine. Lean ore directly into the blast furnace production of rare earth slag as a rare earth alloy smelting process has been used by the production. However, high-iron niobium containing niobium (Nb = 0.15-0.35%, P = 2-4%) is treated as inferior scrap, so the study of lean ore with hot metal niobium, shovel, steelmaking is to get through Baotou second An important issue in the process. From May to July 1978, Baotou Metallurgy Research Institute first used homemade 0.5 ton oxygen bottom blowing converter to extract niobium from the lean ore and 40 furnaces to produce bottom blowing niobium with Nb 2 O 5 = 4 ~ 6% and Nb / P ≥ 10 Slag, niobium oxidation rate> 80%. Bottom blowing slag