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首页> 外文期刊>Journal of Iron and Steel Research International >Melting of Pre-Reduced Chromite Pellet Bearing Carbon
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Melting of Pre-Reduced Chromite Pellet Bearing Carbon

机译：预先还原的含铬铬铁球的熔化

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摘要

As the raw material for hot metal containing chromium from 20 percent to 40 percent, carbon-beared chromite pellets made from three kinds of typical chromite were reduced at 1 300 deg C for 30 min and then kept at 1 550-1 600 deg C for 10 min. The effect of Cr_2O_3/FeO mass ratio in pellets on chromium content in hot metal and the yield of chromium were investigated. The results indicated that the highest chromium content is in hot metal produced from South African UG2 ore, but slag volume produced with Indian chromite is the smallest. The yield of chromium is only 60 percent to 75 percent, due to short melting time, high melting point and large surface tension of the slag with high Al_2O_3 and MgO content, which influences the separation between metal and slag. Key words: pre-reduction; chromite pellet; smelting; hot metal
机译：作为含铬20％至40％的铁水原料，将三种典型的铬铁矿制成的含碳铬铁矿球团在1300℃下还原30分钟，然后在1 550-1 600℃下保持30℃。 10分钟研究了颗粒中Cr_2O_3 / FeO质量比对铁水中铬含量和铬产量的影响。结果表明，南非UG2矿石产生的铁水中铬含量最高，而印度亚铬铁矿产生的渣量最小。由于Al_2O_3和MgO含量高的熔渣熔化时间短，熔点高，表面张力大，铬的产率仅为60％到75％，这会影响金属与熔渣之间的分离。关键字：预还原亚铬酸盐颗粒；冶炼铁水

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