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首页> 外文会议>International Congress on the Science and Technology of Ironmaking >ISOTHERM IN THE Fe-RICH REGION AND MgO PARTITIONING BETWEEN LIQUID SLAG AND Fe_3O_4 ON THE FeO_x-CaO-SiO_2-MgO SYSTEM AT 1573 K UNDER OXYGEN PARTIAL PRESSURE OF 10~(-7)atm
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ISOTHERM IN THE Fe-RICH REGION AND MgO PARTITIONING BETWEEN LIQUID SLAG AND Fe_3O_4 ON THE FeO_x-CaO-SiO_2-MgO SYSTEM AT 1573 K UNDER OXYGEN PARTIAL PRESSURE OF 10~(-7)atm

机译：在FEO_X-CAO-SIO_2-MGO系统的FEO_X-CAO-SIO_2-MGO系统中在FEO_X-CAO-SIO_2-MGO系统中的FE富渣区域和MgO分区中的ISotherm在10〜（ - 7）ATM的氧气分压下

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摘要

The increment in the impurities of iron ore such as Al_2O_3 lowers the reducibility of iron ore sinter and increases the gas permeability resistance in a blast furnace. In order to overcome the problems, MgO is often added into sinter by blending dolomite and/or serpentine as a constituent of raw materials of sinters. The role of MgO in sinter at the lower part of a blast furnace depends on the MgO distribution in sinter. In this study, isotherm in the Fe-rich region and MgO partitioning between liquid slag and Fe_3O_4 on the FeO_x-CaO-SiO_2-MgO system have been measured at 1573 K and at oxygen partial pressures of 10~(-6) atm and 10~(-7) atm which are similar to that of the sintering process. It has been found that the liquid area in the FeO_x-rich side is decreased with addition of MgO over the measurement range of the CaO/SiO_2 ratios (mass%) between 0.32 and 2.28. The ratio of MgO concentrations in the liquid phase to that in the Fe_3O_4 phase decreases with increasing the CaO/SiO_2 ratio.
机译：铁矿石杂质中的增量降低了铁矿石烧结的可还原性，并增加了高炉中的透气性抗性。为了克服问题，MgO通常通过将白云石和/或蛇形作为索特尔原料的组成部分添加到烧结中。 MgO在高炉下部烧结中的作用取决于烧结中的MgO分布。在该研究中，在1573k和10〜（-6）atm和10的氧气部分压力下测量了Fe-arag和Fe_3O_4之间的Fe富渣和Fe_3O_4之间的Intherotm和MgO分区。 〜（-7）ATM类似于烧结过程的ATM。已经发现，在CaO / SiO_2比率（质量％）的测量范围内，在0.32和2.28之间的测量范围内，FeO_x的含量中的液体区域减小。随着CaO / SiO_2的比例的增加，液相中的MgO浓度与Fe_3O_4相中的比率降低。

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