粉煤灰中稀土元素提取利用研究进展  

Research Progress of Rare Earth Elements Recovery from Coal Fly Ash

作　　者：邹建华 王慧 陈虹雨 张卫国[2] ZOU Jian-hua;WANG Hui;CHEN Hong-yu;ZHANG Wei-guo(College of Civil Engineering,Chongqing Three Gorges University,Chongqing 404020,China;College of Geology and Environment,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]重庆三峡学院土木工程学院,重庆404020 [2]西安科技大学地质与环境学院,陕西西安710054

出　　处：《稀土》2022年第4期11-19,共9页Chinese Rare Earths

基　　金：国家自然科学基金项目(41502162);重庆市自然科学基金项目(cstc2020jcyj-msxmX0042);重庆市教委科技项目(KJQN201901230,KJQN202001206,KJZD-M20211201)

摘　　要：稀土元素在现代工业中的作用与日俱增,随着未来需求的日益增长以及传统矿床的逐渐消耗,寻找稀土资源新的来源是全球关注的焦点。近年来,粉煤灰被认为是未来能够提供稀土元素的可替代原料之一,同时,稀土元素提取也被认为是粉煤灰高附加值利用的一个重要方向。要实现粉煤灰中稀土元素的综合利用,提取技术是关键。本文总结了国内外粉煤灰中稀土元素赋存状态、物理富集以及化学提取的最新研究进展,探讨了粉煤灰中稀土元素提取要综合考虑的各种因素,可为从粉煤灰中提取利用稀土元素提供参考,促进粉煤灰的高效循环利用。Rare Earth Elements(REE)play a key role in modern industry.As the increase in future demand and the depletion of traditional RE ore,it is imperative to explore the alternative REE resources.In recent years,coal fly ash is considered as the alternative sources for REE extraction.Also,REE extraction from coal fly ash is an important aspect for coal fly ash high added value utilization.Extraction technology determines whether REE can be utilized from coal fly ash successfully.This paper summarized the progress of modes of occurreces of REE in coal fly ash,enrichment and extraction of REE from coal fly ash.We also discussed some factors concerning REE extraction from coal fly ash,which can provide references for REE comprehensive utilization from coal fly ash in China.If the REE can be utilized successfully,it can strengthen the strategic advantages of REE resources and promote the efficient recycling of coal fly ash in China.

关 键 词：稀土元素 粉煤灰 提取 

分 类 号：TQ536.4[化学工程—煤化学工程] TF845[冶金工程—有色金属冶金]