摘要
Inthispaper,wehavestudiedtheadsorptionpropertiesofgoldbyα-alkylsubstitutedpyridineresin(BPR)inalkalinesolution.ThesingleanddualcomponentkineticmasstransferprocessofAu(I),Ag(I)andothermetalcyanideionswerealsoinvestigated.Theresultsobtainedshowthatthemasstransferratesofthecyanideionsintheresinphasearecloselyrelatedtothemolarratioandtheconfigurationofmetalcyanideions.TheelutionkineticsofAu(I)andothercyanideionsbyNH4SCNhasbeeninvestigatedsystematically.TheintraparticlediffusioncoefficientandactivationenergyofAu(I),Ag(I),Ni(I)Fe(Ⅲ)cyanideanionsweredeterminedinCI,NO3,OH-typeBPRresinatdifferenttemperatures.ItisfoundfromtheexperimentalresultsthatthemechanismforextractingAu(I),Ag(I)andothermetalcyanideanionsbyBPRresinbelongstoionexchangeprocess.Thedifferenceofactivationentropyofsomemetalcyanideanions(ΔS-ΔS^-)wasevaluated.
出版日期
1992年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)