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EFFECT OF DIFFERENT SOURCE OF SiO2 ON STRUCTURE AND PROPERTIES OF ACID PELLET
Author(s): 
Pages: 1-5
Year: Issue:  3
Journal: RESEARCH ON IRON &STEEL

Keyword:  酸性球团SiO2源微观结构性能;
Abstract: 应用微型烧结法,通过多种途径改变球团矿的SiO2含量,研究了酸性球团矿显微结构及其性能。结果表明,添加化学纯SiO2使团块中硅酸盐矿物增多,气孔率升高,还原性变好,但对团块的视密度和抗压强度具有双重性;配加海南矿使团块中赤铁矿增加,硅酸盐液相增加,团块抗压强度增加,还原性变好;配加膨润土使SiO2含量由4.98?%增加到7.83?%,团块的视密度、抗压强度增加,孔隙率下降,还原性变差,进一步增加SiO2含量导致相反的趋势。
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