The recovery of rhenium from waste acid is an urgent issue due to low rhenium concentration and high sulfuric acidity.To solve the problem,novel coated solvent-impregnated resins consisting of inert resins LS-300,Alam...The recovery of rhenium from waste acid is an urgent issue due to low rhenium concentration and high sulfuric acidity.To solve the problem,novel coated solvent-impregnated resins consisting of inert resins LS-300,Alamine 304-1 and the PVA film(304-CSIRs)were prepared for the separation of Re(Ⅶ)from high sulfuric acid solutions.It was shown that the PVA film coated completely on the surfaces of LS-300 resins with a thickness of 5μm,and Alamine 304-1 distributed completely inside the porous of LS-300 resins.The adsorption fitted well with Langmuir model and pseudo-second-order model with the saturation adsorption capacity of139.40 mg·g-1.The maximum separation factor of Re(Ⅶ)versus Cu(Ⅱ)was up to 483,and 304-CSIRs had no adsorptions for As(V).The adsorption capacity of Re(Ⅶ)onto 304-CSIRs maintained in 97.79%at the fifth adsorption-desorption cycle.99.87%of rhenium was recovered by 304-CSIRs from waste acid generated from a copper smelter.展开更多
We regret that our article "Reductive immobilization of Re(Ⅶ) by graphene modified nanoscale zero-valent iron particles using a plasma technique"(Sci. China Chem., 2016, 59:150–158)[1] contained errors. Th...We regret that our article "Reductive immobilization of Re(Ⅶ) by graphene modified nanoscale zero-valent iron particles using a plasma technique"(Sci. China Chem., 2016, 59:150–158)[1] contained errors. The corrections in an erratum do not change or affect the result or conclusion of the paper.展开更多
基金financially supported by the Fundamental Research Funds for the Central Universities of Central South University(No.2019zzts243)the National Natural Science Foundation of China(No.51604303)Hunan Natural Science Fund for Distinguished Young Scholar(No.2019JJ20031)。
文摘The recovery of rhenium from waste acid is an urgent issue due to low rhenium concentration and high sulfuric acidity.To solve the problem,novel coated solvent-impregnated resins consisting of inert resins LS-300,Alamine 304-1 and the PVA film(304-CSIRs)were prepared for the separation of Re(Ⅶ)from high sulfuric acid solutions.It was shown that the PVA film coated completely on the surfaces of LS-300 resins with a thickness of 5μm,and Alamine 304-1 distributed completely inside the porous of LS-300 resins.The adsorption fitted well with Langmuir model and pseudo-second-order model with the saturation adsorption capacity of139.40 mg·g-1.The maximum separation factor of Re(Ⅶ)versus Cu(Ⅱ)was up to 483,and 304-CSIRs had no adsorptions for As(V).The adsorption capacity of Re(Ⅶ)onto 304-CSIRs maintained in 97.79%at the fifth adsorption-desorption cycle.99.87%of rhenium was recovered by 304-CSIRs from waste acid generated from a copper smelter.
文摘We regret that our article "Reductive immobilization of Re(Ⅶ) by graphene modified nanoscale zero-valent iron particles using a plasma technique"(Sci. China Chem., 2016, 59:150–158)[1] contained errors. The corrections in an erratum do not change or affect the result or conclusion of the paper.
