高炉渣中铝、铁的浸出研究  

Study on Aluminum and Iron Leaching of Blast Furnace Slag

作　　者：刘文[1] 苏洁[1] 陈莉荣[1] 

机构地区：[1]内蒙古科技大学能源与环境学院,包头014010

出　　处：《硅酸盐通报》2015年第1期208-212,共5页Bulletin of the Chinese Ceramic Society

基　　金：内蒙古自治区高等学校科学研究项目(NJZY13149)

摘　　要：以钢铁厂高炉渣为原料,采用酸浸法和助浸法研究铁、铝浸出率。结果表明:高炉渣为非晶相玻璃体结构,当H2SO4浓度5mol/L;酸渣比20∶1;反应时间60min,反应温度100℃时,高炉渣中铁、铝的浸出率为30.59%。添加助溶剂Na2CO3有助于提高高炉渣中铁、铝浸出率,在Na2CO3/高炉渣质量比为0.3时,铁、铝的浸出率为46.87%,此时,高炉渣晶体结构改变,表面凹凸不平并粘附不同形状的细小颗粒,吸附性孔道增多,利于混凝吸附的进行,并进一步提出强化浸出建议。With blast furnace slag as raw material. Using acid leaching method and help leaching method to research aluminium,iron leaching rate. The results showed that： Blast furnace slag is amorphous structure,When H2SO4 concentration is 5 mol / L,acid slag ratio is systematically,reaction time is 60 min,reaction temperature is 100 ℃,leaching rate of iron and aluminum is 30. 59%. Adding cosolvent Na2CO3 is helpful to raise leaching rate,When the quality ratio of Na2CO3 and blast furnace slag is 0. 3,the leaching rate of iron and aluminum is 46. 87%. At this point,the crystal structure change of blast furnace slag,Its surface is uneven and adhere to the tiny particles of different shapes. This increase its adsorption channel,conducive to adsorption,coagulation and puts forward suggestions on strengthening leaching.

关 键 词：高炉渣 酸浸 助溶剂 铝、铁浸出率 

分 类 号：X705[环境科学与工程—环境工程]