【作者】 李召峰； 周宗辉； 单立福；

【Author】 LI Zhao-feng,ZHOU Zong-hui,SHAN Li-fu(School of Materials Science and Engineering,University of Jinan,Jinan 250022,China)

【机构】 济南大学材料科学与工程学院；

【摘要】 利用氢氧化钾-蔗糖溶液(KOSH)法萃取钢渣中的中间相(铁铝酸盐等),分析了不同的钢渣细度,萃取温度和萃取时间对中间相溶解状况的影响。利用XRD和SEM对萃取后残渣进行组成和形貌分析,结果证明:在萃取温度为90℃的环境下,4.00g细度为600m2/kg的钢渣当萃取1h时,钢渣中的中间相可充分溶解,其它矿物不溶或溶解很少。分析表明,钢渣的中间相在氢氧化钾形成的碱性环境中,与蔗糖和氢氧化钾形成的有机配体发生离子取代反应,同时降低了铁铝酸盐的反应活化能,从而使中间相充分溶解。更多还原

【Abstract】 Mesophase Extraction from Steel Slag by Potassium Hydroxide-sucrose(KOSH)Solution(iron aluminate,etc.),study the mesophase dissolve influenced by different fineness,extraction temperature and extraction time of the steel slag.The composition and morphology of the residue which after extraction by XRD and SEM to analysised,the results prove that:when the extraction temperature is 90℃,the fineness of steel slag is 600m2/kg after extraction 1h,4.00g steel slag in the mesophase can be fully dissolved,other minerals insoluble or dissolved rarely.Analysis showed that the mesophase of steel slag in the alkaline environment which formed by potassium hydroxide,with the organic ligands that by sugar and potassium hydroxide formed took place ions replace at the same time reduces the activation energy of iron aluminate,so that mesophase fully dissolved.更多还原