Europium recovery process by means of polymeric nanoparticles functionalized with acrylic acid,curcumin and fumaramide  

作　　者：P.A.Martínez-Montoya J.M del Río A.de J.Morales-Ramirez M.Corea 

机构地区：[1]Escuela Superior de Ingeniería Química e Industrias Extractivas,ESIQIE-IPN,Departamento de Ingeniería Metalúrgica UPALM S/N Col.Lindavista,Gustao A.Madero,CDMX,C.P.07738,Mexico [2]Escuela Superior de Ingenieria Química e Industrias Extractivas,ESIQIE-IPN,Laboratorio de Investigación en Polímeros y Nanomateriales,UPALM S/N Col.Lindavista,GustavoA.Madero,CDMX,C.P.07738,Mexico [3]Centra de Investigación e Innovación Tecnológica,CIITEC-IPN,Cda.de CECATI,s/n,Santa Catarina,Azcapotzalco,C.P.02250,CDMX,Mexico

出　　处：《Journal of Rare Earths》2024年第10期1950-1959,共10页稀土学报（英文版）

基　　金：Project supported by Secretaria de Investigación y Posgrado Instituto Politecnico Nacional(20221369,20231939,2027024,20230751);Consejo Nacional de Humanidades,Ciencia y Tecnologias CONAHCyT。

摘　　要：Polymeric nanoparticles of poly(methyl methacrylate)were obtained by emulsion polymerization techniques in a proce ss of two stages.The particles were functionalized with acrylic acid,curcumin,and fumaramide and three series of polymeric particles were obtained.The incorporation of functional groups was confirmed by Fourier transform-infrared spectrosocopy(FT-IR)and ultraviolet-visible(UV-Vis)methods.The spherical morphology of particles with an average diameter of 100 nm was observed by scartning electron microscopy(SEM).The polymeric materials were used for recovery of[Eu]from synthetic solutions.The nanoparticles show excellent chelation capacity to trap rare-earth ions,because they recover more than 85%of[Eu]at pH of 2.The images of SEM after extraction process show arrays between particles with larger average particle sizes to 1.5 um.In addition,the particles have a good stripping capacity,exceeding 50%of it,maintaining their homogeneity in morphology and good stability in dispersion for the recovery and stripping processes.A pseudo-second model order is obtained for the extraction and stripping processes while the best results of stripping process are obtained at pH of 6.

关 键 词：[Eu]recovery Chelating effect Extraction process Stripping process Emulsion polymerization Rare earths 

分 类 号：TF845[冶金工程—有色金属冶金] TB383.1[一般工业技术—材料科学与工程]