典型文献
Solvent extraction with a three-dimensional reticulated hollow-strut SiC foam microchannel reactor
文献摘要：
Recently,there has been considerable interest in the use of microchannel reactors for hydrometallurgy of rare earths(REs).Here,a novel integrated microchannel reactor based on the hollow-strut SiC foam mate-rial is presented and demonstrated to extract Ce3+and Pr3+using 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester(P507)as the extractant.The typical three-dimensional reticulated structure of the hollow-strut SiC foam was characterized by scanning electron microscopy and X-ray micro computed tomography.Since the reactor's structure plays a key role in fluid mixing and mass diffusion during the extraction process,the structure-performance relationship of the foam was studied by extraction experiments combined with numerical simulations.Using the foam with the optimal structure,the influ-ence of the flow rate Q0 of the two liquid phases on the extraction efficiency η and overall volume mass transfer coefficient KLa was discussed.For both RE ions,with increasing Q0,η decreases while KLa increases.For the total flow rate of the two phases of 4 ml·min-1,the η values of Pr3+and Ce3+reached 98.7％and 97.0％,respectively.For the total flow rate of 36 ml·min-1 which was much higher than that of many other microchannel reactors reported in the literatures,the η values of Pr3+and Ce3+still reached 92.2％and 86.9％,respectively,and the KLa values of Pr3+and Ce3+were 0.198 and 0.161 s-1,respectively,similar to the high values reported for other microchannel reactors studied in previous work.These find-ings indicate that the hollow-strut SiC foam microchannel reactor is suitable for use in REs extraction.
文献关键词：
中图分类号：
作者姓名：
Ye Zhang;Yong Gao;Peng Wang;Duo Na;Zhenming Yang;Jinsong Zhang
作者机构：
School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
文献出处：
引用格式：
[1]Ye Zhang;Yong Gao;Peng Wang;Duo Na;Zhenming Yang;Jinsong Zhang-.Solvent extraction with a three-dimensional reticulated hollow-strut SiC foam microchannel reactor)[J].中国化学工程学报（英文版）,2022(06):53-62
A类：
Pr3+using,Pr3+and,Ce3+reached,Ce3+still,Ce3+were
B类：
Solvent,extraction,three,dimensional,reticulated,hollow,strut,SiC,foam,microchannel,Recently,there,been,considerable,interest,use,reactors,hydrometallurgy,rare,earths,REs,Here,novel,integrated,mate,rial,presented,demonstrated,Ce3+and,ethylhexyl,phosphoric,acid,mono,ester,P507,extractant,typical,structure,was,characterized,by,scanning,electron,microscopy,ray,computed,tomography,Since,plays,key,role,fluid,mixing,mass,diffusion,during,process,performance,relationship,studied,experiments,combined,numerical,simulations,Using,optimal,influ,ence,flow,Q0,two,liquid,phases,efficiency,overall,volume,transfer,coefficient,KLa,discussed,For,both,increasing,decreases,while,increases,total,ml,values,respectively,which,much,higher,than,that,many,other,reported,literatures,similar,previous,work,These,find,ings,indicate,suitable
AB值：
0.468469
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