摘要
粉煤灰是一种工业固体废弃物,其二次资源利用涉及多个领域。其中利用粉煤灰制备矿物聚合材料和从粉煤灰中提取铝元素制备氧化铝是对其利用的两个主要途径。而在这两种不同的利用研究中,都需要对粉煤灰在碱性条件下的反应行为进行研究,因为这直接关系到从粉煤灰中提取铝元素的效率和粉煤灰基矿物聚合材料的性能。本文综合论述了国内外对粉煤灰在碱性条件下的主要元素溶出影响因素及其规律研究,并对相应的测试方法和表征方法进行评述,指出了目前有关粉煤灰在碱性条件下的变化研究中亟待解决的问题,并对其中部分问题提出了对应的解决方案。
Fly ash is a kind of industrial solid waste,and its secondary resource utilization involves many fields.Among them,the use of fly ash to prepare mineral polymer materials and the extraction of aluminum from fly ash to prepare alumina are the two main ways to use it.In these two different utilization studies,it is necessary to study the reaction behavior of fly ash under alkaline conditions,because this is directly related to the efficiency of extracting aluminum from fly ash and properties of fly ash-based mineral polymer materials.This article comprehensively discusses the domestic and foreign research on the main elements dissolution of fly ash under alkaline conditions and its laws,and reviews the corresponding test methods and characterization methods.It is pointed out that the current related fly ash under alkaline conditions Issues that need to be resolved urgently in the study of changes in the country,and some corresponding solutions have been proposed.
作者
聂轶苗
刘攀攀
夏淼
刘淑贤
王玲
Nie Yimiao;Liu Panpan;Xia Miao;Liu Shuxian;Wang Ling(College of Mining Engineering,North China University of Science and Technology,Tangshan,Hebei,China)
出处
《矿产综合利用》
CAS
北大核心
2021年第2期77-84,共8页
Multipurpose Utilization of Mineral Resources
基金
唐山市科技计划项目(19130223g)
河北省高层次人才资助项目(A201901053)
唐山市科学技术研究与发展计划项目(19150210E)
河北省高等学校科学研究计划项目(QN2015091)。
关键词
碱浸出
粉煤灰
反应行为
铝
硅
Alkaline leaching
Fly ash
Reaction behavior
Aluminum
Silicon
作者简介
聂轶苗(1979-),女,博士,教授,主要从事矿物加工及矿物材料的教学与科研工作。
