MMIJ Annual Meeting 2014
Mar 26 - Mar 28, 2014Institute of Industrial Science, The University of Tokyo
MMIJ Annual Meeting 2014
Mar 26 - Mar 28, 2014Institute of Industrial Science, The University of Tokyo
[12-10]Nickel Extraction of Low-Grade Limonitic Ore from Halmahera Island (Indonesia) by Citric Acid under Atmospheric Pressure
〇Astuti Widi1、平島 剛1、笹木 圭子1、沖部 奈緒子1(1. Kyushu University)
司会:芳賀 一寿(秋田大学)
Leaching mechanism and kinetics of nickel extraction from low-grade limonitic ore of Halmahera Island(Indonesia) using citric acid solution under atmospheric pressure were investigated. The effects of variousparameters were studied to optimize the leaching conditions and to determine the kinetic of the leaching. Theresults indicated that the increase in the leaching time, temperature, citric acid concentration, pulp density andparticle size enhanced the leaching rate of nickel.