Síntese eletroquímica do ion ferrato(VI)
Fecha
2003Otro título
Eletrochemical synthesis of iron(vi) ferrate
Materia
Abstract
The optimization of ferrate(VI) ion generation has been studied due to its favorable characteristics for application in several fields, including environmental quality control. The paper presents the best conditions for electrolytic generation of ferrate(VI) in alkaline media. An appropriate electrolyte was NaOH, 10 mol/L. Circulation of the electrolyte solution was important to avoid acidification close to the anode surface. An anode pre-cleaning with 10% HCl was more efficient than a cathodic ...
The optimization of ferrate(VI) ion generation has been studied due to its favorable characteristics for application in several fields, including environmental quality control. The paper presents the best conditions for electrolytic generation of ferrate(VI) in alkaline media. An appropriate electrolyte was NaOH, 10 mol/L. Circulation of the electrolyte solution was important to avoid acidification close to the anode surface. An anode pre-cleaning with 10% HCl was more efficient than a cathodic pre-polarization. Among the distinct anode materials tested, pig iron showed the best performance, allowing up to 20 g/L of Na2FeO4, in 10 mol/L NaOH solution to be obtained, after 7 h of reactor operation, which is a concentration higher than those found in literature for alternative processes. ...
En
Química nova. São Paulo. Vol. 26, n. 3 (2003), p. 420-24
Origen
Nacional
Colecciones
-
Artículos de Periódicos (39077)Ciencias Exactas y Naturales (5943)
-
Artículos de Periódicos (39077)Ingeniería (2395)
Este ítem está licenciado en la Creative Commons License