铬矿在CaO-SiO2-MgO-Al2O3渣系中的熔解行为

›› 2007, Vol. 7 ›› Issue (2): 322-326.

铬矿在CaO-SiO2-MgO-Al2O3渣系中的熔解行为

刘岩,姜茂发,许力贤

东北大学材料与冶金学院

出版日期:2007-04-20 发布日期:2007-04-20

Dissolution Behavior of Chromium Ore in CaO-SiO2-MgO-Al2O3 Slag System

LIU Yan,JIANG Mao-fa,XU Li-xian

School of Materials and Metallurgy, Northeastern University

Online:2007-04-20 Published:2007-04-20

摘要/Abstract

摘要： 研究了形状一定的致密铬矿在CaO-SiO2-MgO-Al2O3渣系中的熔解行为，系统考察了不同渣系组成对铬矿在渣中熔解量及熔解速度的影响，结合实验现象讨论了铬矿在渣中的熔解机理. 研究结果表明，在本实验条件下，炉渣碱度在0.8~1.5范围内，随渣碱度降低，铬矿熔解量及熔解速度均增大；铬矿熔解量和熔解速度随着Al2O3和MgO质量分数，尤其是Al2O3质量分数增大而减小，在炉渣中添加CaF2可明显加快铬矿熔解速度.

关键词: 铬矿, 熔融还原, 熔解速度, 熔解机理, 炉渣

Abstract: The dissolution behavior of compact chromium ore with definite shape in CaO-SiO2-MgO-Al2O3 slag system was studied, and the effect of different slag compositions on the dissolution amount and rate of chromium ore in slag was investigated. The dissolution mechanism of chromium ore in slag was also discussed. It was found that the dissolution rate of chromium ore in slag increased with slag basicity decreasing under the present experimental conditions. The dissolution amount and rate of chromium ore decreased with the increase of Al2O3 and MgO contents. In particular, they decreased with the former. Addition of CaF2 to the initial slag increased the dissolution rate markedly.

Key words: chromium ore, smelting reduction, dissolution rate, dissolution mechanism, slag

刘岩;姜茂发;许力贤. 铬矿在CaO-SiO2-MgO-Al2O3渣系中的熔解行为[J]. , 2007, 7(2): 322-326.

LIU Yan;JIANG Mao-fa;XU Li-xian. Dissolution Behavior of Chromium Ore in CaO-SiO2-MgO-Al2O3 Slag System[J]. , 2007, 7(2): 322-326.

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