Application of volumetric electrodes to the recuperation of metals in industrial effluents—I. Mass transfer in fixed beds of spherical conductive par

✍ Scribed by H. Olive; G. Lacoste

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 449 KB
• Volume: 24
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(79)85009-4

✦ Synopsis

&&act -The study deals with the mass transfer in an electrochemical reactor for the recovery of copper, using a Bow through porous electrode technique. It is performed in an electrolysis cell made up of spherical particles covered with copper and percolated by a dilute sulhnic acid solution of Cul+ ions. The determination of mass transkx coefficients is postible if the value of the material yield is known. The latter is calculated from the measurement of inlet and outlet concentrations determined by spectrophotometry. The geometric parameters (diameter of particles and height of bed) and hydrodynamic parameters (flow over the particles) have been scanned. These results related to those obtained by authors who investigated the influence of the viscosity solution suggest the correlation Sh = 4.3 Re0,35 ko,zs for Reynolds numbers between 0.1 and 3. 1. INTBODUCllON