典型文献
Extraction and separation of yttrium from other rare earths in chloride medium by phosphorylcarboxylic acids
文献摘要：
Two phosphorylcarboxylic acids,3-((bis(2-ethylhexyloxy))phosphoryl)propanoic acid(PPA)and 3-((bis(2-ethylhexyloxy))phosphoryl)-3-phenylpropanoic acid(PPPA),were synthesized for separating yttrium from other rare earths in the chloride feed of ion-adsorption type rare earth concentrate.The effect of the factors such as pH1/2,temperature,saponification degree and phase modifiers was inves-tigated.The separation efficiencies of PPA and PPPA are obviously better than the typical extractants such as sec-octylphenoxy acetic acid(CA-12)and naphthenic acid(NA).The extraction process of rare earths by PPA and PPPA is a cation exchanging reaction,which is similar to those of CA-12 and NA.The loaded rare earths in both PPA and PPPA systems can be effectively back-extracted by 0.5 mol/L HCl or higher concentration.A cascade extraction process for separating yttrium from other rare earths was developed using PPPA as the extractant.The yttrium product with the purity of 97.20 wt％was obtained by 35 stages of extraction and 12 stages of scrubbing.
文献关键词：
中图分类号：
作者姓名：
Guolong Wu;Zhifeng Zhang;Yanling Li;Wuping Liao
作者机构：
State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;University of Science and Technology of China,Hefei 230026,China;Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341000,China
文献出处：
引用格式：
[1]Guolong Wu;Zhifeng Zhang;Yanling Li;Wuping Liao-.Extraction and separation of yttrium from other rare earths in chloride medium by phosphorylcarboxylic acids)[J].稀土学报（英文版）,2022(06):958-964
A类：
phosphorylcarboxylic,ethylhexyloxy,phosphoryl,phenylpropanoic,PPPA,extractants,octylphenoxy,naphthenic
B类：
Extraction,separation,yttrium,from,other,rare,earths,chloride,medium,by,acids,Two,bis,were,synthesized,separating,feed,adsorption,type,concentrate,factors,such,pH1,temperature,saponification,degree,phase,modifiers,was,inves,tigated,efficiencies,obviously,better,than,typical,sec,acetic,CA,NA,extraction,process,exchanging,reaction,which,similar,those,loaded,both,systems,can,effectively,back,extracted,HCl,higher,concentration,cascade,developed,using,product,purity,wt,obtained,stages,scrubbing
AB值：
0.398051
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