Mass transfer rates in an electrochemical cell
- Resource Type
- Authors
- S.C. Das; R.P. Das; Tondepu Subbaiah
- Source
- Hydrometallurgy. 33:153-163
- Subject
- Mass transfer coefficient
Chemistry
Turbulence
Electrolytic cell
Metals and Alloys
Limiting current
Analytical chemistry
Mechanics
Industrial and Manufacturing Engineering
Electrochemical cell
Physics::Fluid Dynamics
Reaction rate
Impeller
Mass transfer
Materials Chemistry
- Language
- ISSN
- 0304-386X
Local mass transfer conditions in an electrochemical cell were obtained at various spatial locations with turbulence created by electrolyte circulation, or by an impeller, or by employing both simultaneously. For the cell with electrolyte circulation both the limiting current density and mass transfer coefficient varied with the cathode heights and three zones for their distribution in the cell were obtained. An empirical equation correlating mass transfer coefficient with residence time is proposed. The mass transfer coefficient has been correlated with specific power. Three hydrodynamic zones were also obtained where the turbulence was created by an impeller. An equation for correlating the mass transfer coefficient with the impeller speed is suggested.