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典型文献
Extraction mechanism and separation behaviors of low-concentration Nd3+and Al3+in P507-H2SO4 system
文献摘要:
In order to clarify the solvent extraction and separation behaviors of rare earths and impurity of Al during the extraction and enrichment of low-concentration leach solution of ion-adsorption rare earth ore,the extraction mechanism and separation behaviors of Nd3+and Al3+in the Nd2(SO4)3-Al2(SO4)3 mixed solution using P507 were studied in this work.The extraction of Nd3+and Al3+follows the cation ex-change mechanism.With the increase of the equilibrium pH,βNd/Al in the extraction of the Nd2(SO4)3-Al2(SO4)3 mixed solution using P507 is always higher than that in the extraction of single Nd2(SO4)3 and Al2(SO4)3 solutions.It can be attributed to the fact that the extraction of Nd3+using P507 is much faster than that of Al3+,and Al3+is more prone to be hydrolyzed at lower pH.βNd/Al in the extraction of the Nd2(SO4)3-Al2(SO4)3 mixed solution decreases gradually with the increase of mixing time within the equilibrium pH range of 1.5-1.9.The extraction of Nd3+using P507 is much faster than that of Al3+,but the stability of Al3+-loaded organic phase is better than that of Nd3+-loaded organic phase,thus Nd3+in the Nd3+-loaded organic phase is gradually replaced by Al3+in the aqueous phase with the increase of mixing time.
文献关键词:
作者姓名:
Hongyuan Zhang;Longsheng Zhao;Xudong Zheng;Depeng Liu;Zongyu Feng;Yongqi Zhang;Xiaowei Huang
作者机构:
National Engineering Research Center for Rare Earth Materials,GRINM Group Co.,Ltd.,Beijing 100088,China;General Research Institute for Nonferrous Metals,Beijing 100088,China;Grirem Advanced Materials Co.,Ltd.,Beijing 100088,China;Rare Earth Functional Materials(Xiong'an)Innovation Center Co.,Ltd.,Baoding 071700,China
引用格式:
[1]Hongyuan Zhang;Longsheng Zhao;Xudong Zheng;Depeng Liu;Zongyu Feng;Yongqi Zhang;Xiaowei Huang-.Extraction mechanism and separation behaviors of low-concentration Nd3+and Al3+in P507-H2SO4 system)[J].稀土学报(英文版),2022(06):952-957
A类:
Al3+in,Al3+follows,Nd3+using,Al3+is,Nd3+in
B类:
Extraction,mechanism,separation,behaviors,concentration,Nd3+and,P507,H2SO4,system,In,order,clarify,solvent,extraction,rare,earths,impurity,during,enrichment,leach,adsorption,Nd2,Al2,mixed,were,studied,this,work,cation,change,With,increase,equilibrium,always,higher,than,that,single,solutions,It,can,attributed,fact,much,faster,more,prone,hydrolyzed,lower,decreases,gradually,mixing,within,range,stability,loaded,organic,phase,better,thus,replaced,by,aqueous
AB值:
0.326827
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