STUDY ON THE SORPTION BEHAVIOR OF N—METHYL—2—THIO—IMIDAZOLE RESIN FOR Rh(Ⅲ)AND SEPARATION OF Rh(Ⅲ)WITH COMMON METAL IONS BY USING MTIR

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摘要 ThesorptionbehaviorofN-methyl-2-thio-imidazoleresin(MTIR)forRh(Ⅲ)wasinvestigated.TheoptmumsorptionconditionofMTIRforRh(Ⅲ),sorptionratet1/2=84min,sorptioncapacity1.37mmolRh(Ⅲ)/gMTIR,[140.5mgRh(Ⅲ)/gMTIR],sorptionmolarratio0.34Rh(Ⅲ)/functionalgroup,distributioncoefficientD=2.5×10^3mg·g^-1weredetermined.ThesorptionselectivityofMTIRforRh(Ⅲ)inthepresenceofcommonmetalions,Fe^3+,Co^2+,Ni^2+andCu^2+wasexamined.Rh(Ⅲ)adsorbedonMTIRcanbeelutedquantitativelybyusingamixedsolutioncomposedof20%thio-urea-acetone:6molHCl.dm^-3(1:1vol.)usedasaneluent.Rh(Ⅲ)canbeseparatedfromthemixtureofRh(Ⅲ)andFe^3+,Co^2+,Ni^2+,Cu^2+byusingD72resinandMTIRsuccessively.
机构地区 不详
出版日期 1995年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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