Title of article :
DISSOLUTION KINETICS OF NICKEL FROM GÖRDES (MANİSA-TURKEY) LATERITIC ORE BY SULPHURIC ACID LEACHING UNDER EFFECT OF SODIUM FLUORIDE
Author/Authors :
ağaçayak, tevfik selcuk university - department of mining engineering, Konya, TURKEY , aras, ali selcuk university - department of mining engineering, Konya, TURKEY
Abstract :
In this study, dissolution kinetics of nickel from Gördes (Manisa-Turkey) lateritic ore by sodium fluoride in sulphuric acid solution was investigated. The effects of stirring speed, sulphuric acid concentration, sodium fluoride concentration and temperature on nickel extraction were examined. To determine the dissolution kinetics of nickel in sulphuric acid medium under effect of sodium fluoride, shrinking core model was applied to dissolution recoveries. As a result of kinetic studies, it was determined that mixed kinetic model was appropriate. The activation energy (Ea) for the dissolution was calculated as 41.24 kJ/mol.
Keywords :
Dissolution kinetics , Lateritic ore , Nickel , Sulphuric acid , Sodium fluoride , Activation energy
Journal title :
Selcuk University Journal Of The Engineering, Science and Technology
Journal title :
Selcuk University Journal Of The Engineering, Science and Technology
