Effect of Magnetic Field on Rate of Production of Nickel Powder from Nickel Solution by Cementation of Zinc

摘要

The effect of magnetic field on the rate of cementation of nickel from nickel sulphate on zinc was studied. Variables studied were nickel sulphate concentration and magnetic field intensity. It was found that the rate of nickel cementation increases significantly with increasing the intensity of magnetic field and percentage of increase in the rate of cementation ranges from 16.6 to 122 %. Results were explained on the basis that the application of magnetic field produces magneto hydrodynamic flow which enhances the rate of cementation.