TY - JOUR ID - 7644 TI - Optimization of the Nickel Removal Process From Zinc Sulfate Solution Using Central Composite Design of Experiments JO - Iranian Journal of Analytical Chemistry JA - IJAC LA - en SN - 2383-2207 AU - Abbasi, Pourya AU - Shayesteh, Keyvan AU - Vahidfard, Vahid AU - Hosseini, Mehdi AD - Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran AD - Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran; Innovation Center, Payame Noor University, Iran AD - Department of Chemistry,Faculty of Basic Science, Ayatollah Boroujerdi University, Boroujerd, Iran Y1 - 2021 PY - 2021 VL - 8 IS - 1 SP - 17 EP - 28 KW - Removal of Nickel KW - Central Composite Design KW - Zinc Sulfate Solution KW - Optimization KW - Cementation DO - 10.30473/ijac.2021.57821.1181 N2 - 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. UR - https://ijac.journals.pnu.ac.ir/article_7644.html L1 - https://ijac.journals.pnu.ac.ir/article_7644_1ea845b07aa9469d05f81067775a15f2.pdf ER -