Three chelating resins were prepared by reacting poly(beta-chloroethyl glycidyl ether)with benzidine,o-tolidine and o-dianisidine respectively,and their structures were confirmed by IR spectra and elementary analyses....Three chelating resins were prepared by reacting poly(beta-chloroethyl glycidyl ether)with benzidine,o-tolidine and o-dianisidine respectively,and their structures were confirmed by IR spectra and elementary analyses.The adsorption properties of the resins for Au(III),pd(II),Pt(IV),Hg(II),Cu(II),Pb(II)and Zn(II)were also investigated.The results show that the resin incorporating o-dianisidine exhibits high affinity for Au(III)within a broad range of hydrochloric acid,and selectively sorbs Au(III)in the coexistance of Cu(II),Zn(II)and Mg(II).Desorption of Au(III),Pd(II)and Pt(IV)sorbed proceeded quantitatively using 0.1 mol/l hydrochloric acid containing 2%-10%thiourea as desorbents.展开更多
Three new resins are synthesized by the reaction of polyepichlorohydrin with benzidine,O-tolidine and O-dianisidine,respecti v,ely.Their adsorption properties for Au(III),Pd(II),Pt(IV),Hg(II),Cu(II),Pb(II)and Zn(II)ar...Three new resins are synthesized by the reaction of polyepichlorohydrin with benzidine,O-tolidine and O-dianisidine,respecti v,ely.Their adsorption properties for Au(III),Pd(II),Pt(IV),Hg(II),Cu(II),Pb(II)and Zn(II)are investigated.The resin containing O-dianisidine group selectively sorbed Au(III)in the presence of transition metal ions.The results show that synergistic effect of anchor groups plays an important role in the adsorption of metal ions.展开更多
This paper,through XPS and IR analyses on the surface of sealing glass,identifies that the surface treatment of sealing glass by silane is a chemical process.On the basis of the analyses,the authors suggest an ideal c...This paper,through XPS and IR analyses on the surface of sealing glass,identifies that the surface treatment of sealing glass by silane is a chemical process.On the basis of the analyses,the authors suggest an ideal chemical bonding status between silane and glass surface.展开更多
文摘Three chelating resins were prepared by reacting poly(beta-chloroethyl glycidyl ether)with benzidine,o-tolidine and o-dianisidine respectively,and their structures were confirmed by IR spectra and elementary analyses.The adsorption properties of the resins for Au(III),pd(II),Pt(IV),Hg(II),Cu(II),Pb(II)and Zn(II)were also investigated.The results show that the resin incorporating o-dianisidine exhibits high affinity for Au(III)within a broad range of hydrochloric acid,and selectively sorbs Au(III)in the coexistance of Cu(II),Zn(II)and Mg(II).Desorption of Au(III),Pd(II)and Pt(IV)sorbed proceeded quantitatively using 0.1 mol/l hydrochloric acid containing 2%-10%thiourea as desorbents.
文摘Three new resins are synthesized by the reaction of polyepichlorohydrin with benzidine,O-tolidine and O-dianisidine,respecti v,ely.Their adsorption properties for Au(III),Pd(II),Pt(IV),Hg(II),Cu(II),Pb(II)and Zn(II)are investigated.The resin containing O-dianisidine group selectively sorbed Au(III)in the presence of transition metal ions.The results show that synergistic effect of anchor groups plays an important role in the adsorption of metal ions.
文摘This paper,through XPS and IR analyses on the surface of sealing glass,identifies that the surface treatment of sealing glass by silane is a chemical process.On the basis of the analyses,the authors suggest an ideal chemical bonding status between silane and glass surface.
