Title of article :
Optimization of Nickel Removal Process From Zinc Sulfate Solution Using Central Composite Design of Experiments
Author/Authors :
Abbasi, Pourya Department of Chemical Engineering - University of Mohaghegh Ardabili, Ardabil , Shayesteh, Keivan Department of Chemical Engineering - University of Mohaghegh Ardabili, Ardabil , Vahid Fard, Vahid Department of Chemical Engineering - University of Mohaghegh Ardabili, Ardabil , Hosseini, Mehdi Department of Chemistry - Faculty of Basic Science - Ayatollah Boroujerdi University, Boroujerd
Abstract :
Nickel is one of the metallic impurities that should be removed from the electrolyte solution before the
electrowinning of zinc. This study investigated the parameters affecting the process of nickel removal in an
Iranian zinc smelter plant by the response surface methodology. According to the results of experiments, the
optimum condition for removal of nickel was obtained at temperature of 85 °C, the residence time of 60 minutes,
zinc powder of 2.5 g/l, mixing speed of 500 rpm, and pH of 5. With regards to the resulting model from the
Design-Expert software, the significant parameters were concentration, residence time, and temperature,
respectively.
Keywords :
Removal of Nickel , Central Composite Design , Zinc Sulfate Solution , Optimization , Cementation
Journal title :
Iranian Journal of Analytical Chemistry
