Behavior of cationic, anionic and colloidal species of titanium, zirconium and thorium in presence of ion exchange resins
Description
The distribution of titanium, zirconium and thorium is aqueous and resin phases has been studied using strong cationic resin in the R-NH4 form. Solutions of the above elements in perchloric, nitric, hydrochloric and suphuric media were used. Each set of experiments was made by separately varying one of the five parameters - type of anion present, acidity of solution, temperature of percolation, age of solution and concentration of the element. It was found that, depending on the particular balance of these parameters, the elements investigated may be found in acidic solutions either as cationic, anionic or colloidal species. It is emphasized that the colloidal species of titanium, zirconium or thorium are not retained by the ion exchangers, and from this property a method for the separation and purification of the above elements has been outlined
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
A variacao do grau de retencao do titanio, do zirconio e do torio em resina cationica forte na forma R-NH4, foi estudada. Partiu-se de solucoes dos respectivos elementos nos meios perclorico, nitrico, cloridrico e sulfurico. Cada serie de experimentos consistiu em variar um dos cinco parametros: tipo de anion presente, pH da solucao, temperatura de percolacao das solucoes na resina, idade das solucoes e concentracao do elemento, mantendo-se os outros quatro constantes. Concluiu-se que, dependendo dos parametros acima, os elementos estudados podem se encontrar em solucoes acidas como especies cationicas, anionicas ou coloidais. Em especial, as especies coloidais do titanio, do zirconio e do torio nao sao fixadas pelos trocadores de ions e apresentam-se os fundamentos de um metodo de separacao e purificacao desses elementos com base nesta propriedadeFiles
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Additional details
Additional titles
- Original title (Portuguese)
- Estudo do comportamento das especies cationicas, anionicas e coloidais do titanio, do zirconio e do torio frente as resinas trocadoras de ions
Publishing Information
- Imprint Pagination
- 34 p.
- Journal Issue
- no. 447
- Series
- Publicacao IEA.
- Report number
- IEA--447
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 9351457
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ANIONS; CATIONS; COLLOIDS; ION EXCHANGE; PURIFICATION; RESINS; SEPARATION PROCESSES; THORIUM; TITANIUM; ZIRCONIUM
- Descriptors DEC
- ACTINIDES; CHARGED PARTICLES; DISPERSIONS; ELEMENTS; IONS; METALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; TRANSITION ELEMENTS