Optimization of Process Parameters and Kinetics Analysis of Cd Removal in ZnSO4 Production

In order to optimize the process parameters of Cd removal in ZnSO4 production and study mechanism reaction, response surface methodology was used arrange experiments analyze optimal conditions, studied using kinetics. The results show that conditions for are as follows: reaction temperature 55 °C, time 13.43 min, zinc powder dosage should be 2.14 times Cd; main effects three variables from large small dosage, time; is a second-order activation energy 29.6986 kJ/mol, so conforms diffusion control mechanism.