| Autor: |
Sousa Junior, Clenilson da Silva, Ximenes, Dalton de Sousa, Nascimento, Marisa, Nascimento, Karina Rodrigues Paiva Ranauro do, Cunha, Osvaldo Galvão Caldas da |
| Jazyk: |
portugalština |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Química Nova, Volume: 35, Issue: 2, Pages: 301-307, Published: 2012 |
| Popis: |
The extraction of divalent metals (Mn2+, Ni2+, Co2+ and Cu2+) in the system MSO4 - H2SO4 - H2O - D2EHPA in isoparaffin (17/21) was studied by a thermodynamic model based on chemical equilibria with mass and charge balance equations. The activity coefficients of all solutes in the aqueous phase were calculated by Davies equation. By applying this model, the equilibrium concentrations of solutes were calculated from de concentration of divalent metals and pH. The predicted distribution coefficients for the divalents metals were in good agreement with experimental results. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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