Oxidation Behavior of Silicon, Phosphorus and Vanadium in Carbon-saturated Iron Melt with Sodium Carbonate
Oxidation Behavior of Silicon, Phosphorus and Vanadium in Carbon-saturated Iron Melt with Sodium Carbonate
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DOI：
10.2355/isijinternational1966.23.578
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发表时间：
1983-06
影响因子：
1.8
通讯作者：
R. Inoue;H. Suito
中科院分区：
文献类型：
--
作者：
R. Inoue;H. Suito
研究了在1300 °C碳饱和铁液中，用纯碱（Na 2CO 3，Na 2CO 3-Fe 2 O3）和石灰熔剂（CaO-CaF 2-Fe 2 O3）处理时硅、磷和铌的氧化行为。当熔剂分次加入时，磷和铌在初期延迟中被氧化。助熔剂添加完成后，磷和铌的逆转沿着脱硅反应发生。与块状添加苏打助熔剂的结果相比，磷和铌的回复速率相当快，这一事实解释了初始氧化的延迟。无论是整批添加还是分批添加，Fe_2O_3的添加效果都很显著。在含硅、磷、锰和铌的碳饱和铁液中加入Na_2CO_3的实验中发现，如果硅氧化到尽可能低的值，则可以在不氧化锰的情况下除去铌。
The oxidation behavior of silicon, phosphorus and niobium in carbon-saturated iron melt have been studied at 1 300°C by using soda (Na2CO3, Na2CO3-Fe2O3) and lime fluxes (CaO-CaF2-Fe2O3). Phosphorus and niobium were oxidized in the initial retardation when the fluxes were added by installments. The reversion of phosphorus and niobium occurred along with the desiliconization reaction after the completion of the flux addition. In comparison with the results obtained in the addition of the soda flux by the lump, the retardation of the initial oxidation was explained by the fact that the reversion rates of phosphorus and niobium were considerably fast. The effect of Fe2O3 addition to the flux was found to be significant in both the experiments of the lump and installment additions. The extensive removals of silicon and niobium were observed in the addition of Fe2O3 by installments, while no dephosphorization takes place.From the experiment in which Na2CO3 was added to the carbon-saturated iron melt containing silicon, phosphorus, manganese and niobium, it was found that the removal of niobium was possible without the oxidation of manganese if silicon was oxidized to a value as low as possible.