氯化稀土制备过程中的脱氟与资源化工艺研究进展

氟污染具有强穿透性和不可逆性,对环境易造成危害。现行氟碳铈矿分解工艺中,氟以气相形式逸出,即浪费氟资源,又污染环境。随着国家对氟碳铈矿资源和环境安全的重视,建立清洁的氟碳铈矿分解工艺势在必行。介绍了氟碳铈矿冶炼生产氯化稀土过程中氟的脱除和资源化方法,旨在为开发新型绿色稀土冶炼工艺、提高资源综合利用度提供参考。

Research Advance on Bastnaesite Defluorination and Fluorine Recycle During Rare Earth Chlorides Preparation

Fluorine contamination is highly penetrative and nonreversible,it can pollute environment seriously.During bastnaesite decomposition,fluorine is given out as gas.As our government pays more attention to environment and resources of bastnaesite,it is important to establish a green way of Bastnaesite decomposition.This paper introduces some approaches to defluorinate and recover fluorine while preparing rare earth chlorides using bastnaesite.It can be refered to develope a green metallurgical method and impro...