Abstract
{sup 60} Co present in aqueous solutions may be sorbed in clays or zeolites. If the solids are suspended in aqueous solutions, the cations of the solids may be exchanged with {sup 60} Co {sup 2+} ions present in the solutions. Natural aluminosilicate are used for separation of radioactive cations which are present in waste liquids from radiochemical laboratories. The natural sepiolite lattice is almost neutral, having a cation exchange capacity in the order of 0.05 meg/g. It is shown that mild treatment with NaOH solution (2M) results in partial substitution by cations present in the natural sepiolite, in the other hand, during treatment with NaAlO{sub 2} in a 6N NaOH solution at 90 Centigrade degrees it has been produced an aluminated sepiolite resulting in partial Mg-by-Al substitution in the octahedral layer. The crystallinity of the samples before and after the ion exchange was studied by X-ray diffraction. The aim of this paper is to study the Co{sup 2+} ion exchange behavior in this aluminosilicate and to compare it with natural mexican erionite. The natural sepiolite from Vallecas, Spain is recommended as {sup 60} Co adsorbent. This clay is directly obtained from the mineral field without any treatment. (Author).
Citation Formats
Bonifacio M, G.
Sorption of radioactive cobalt with sepiolite and erionite.; Sorcion de cobalto radiactivo con sepiolita y con erionita..
Mexico: N. p.,
1994.
Web.
Bonifacio M, G.
Sorption of radioactive cobalt with sepiolite and erionite.; Sorcion de cobalto radiactivo con sepiolita y con erionita..
Mexico.
Bonifacio M, G.
1994.
"Sorption of radioactive cobalt with sepiolite and erionite.; Sorcion de cobalto radiactivo con sepiolita y con erionita."
Mexico.
@misc{etde_10113545,
title = {Sorption of radioactive cobalt with sepiolite and erionite.; Sorcion de cobalto radiactivo con sepiolita y con erionita.}
author = {Bonifacio M, G}
abstractNote = {{sup 60} Co present in aqueous solutions may be sorbed in clays or zeolites. If the solids are suspended in aqueous solutions, the cations of the solids may be exchanged with {sup 60} Co {sup 2+} ions present in the solutions. Natural aluminosilicate are used for separation of radioactive cations which are present in waste liquids from radiochemical laboratories. The natural sepiolite lattice is almost neutral, having a cation exchange capacity in the order of 0.05 meg/g. It is shown that mild treatment with NaOH solution (2M) results in partial substitution by cations present in the natural sepiolite, in the other hand, during treatment with NaAlO{sub 2} in a 6N NaOH solution at 90 Centigrade degrees it has been produced an aluminated sepiolite resulting in partial Mg-by-Al substitution in the octahedral layer. The crystallinity of the samples before and after the ion exchange was studied by X-ray diffraction. The aim of this paper is to study the Co{sup 2+} ion exchange behavior in this aluminosilicate and to compare it with natural mexican erionite. The natural sepiolite from Vallecas, Spain is recommended as {sup 60} Co adsorbent. This clay is directly obtained from the mineral field without any treatment. (Author).}
place = {Mexico}
year = {1994}
month = {Dec}
}
title = {Sorption of radioactive cobalt with sepiolite and erionite.; Sorcion de cobalto radiactivo con sepiolita y con erionita.}
author = {Bonifacio M, G}
abstractNote = {{sup 60} Co present in aqueous solutions may be sorbed in clays or zeolites. If the solids are suspended in aqueous solutions, the cations of the solids may be exchanged with {sup 60} Co {sup 2+} ions present in the solutions. Natural aluminosilicate are used for separation of radioactive cations which are present in waste liquids from radiochemical laboratories. The natural sepiolite lattice is almost neutral, having a cation exchange capacity in the order of 0.05 meg/g. It is shown that mild treatment with NaOH solution (2M) results in partial substitution by cations present in the natural sepiolite, in the other hand, during treatment with NaAlO{sub 2} in a 6N NaOH solution at 90 Centigrade degrees it has been produced an aluminated sepiolite resulting in partial Mg-by-Al substitution in the octahedral layer. The crystallinity of the samples before and after the ion exchange was studied by X-ray diffraction. The aim of this paper is to study the Co{sup 2+} ion exchange behavior in this aluminosilicate and to compare it with natural mexican erionite. The natural sepiolite from Vallecas, Spain is recommended as {sup 60} Co adsorbent. This clay is directly obtained from the mineral field without any treatment. (Author).}
place = {Mexico}
year = {1994}
month = {Dec}
}