APPLICATIN OF ATTRITION GRINDING IN ACID LEACHING OF NICKEL SULFIDE CONCENTRATE

来源期刊：中国有色金属学报(英文版)1997年第4期

论文作者：Li Ximing Chen Jiayong Roland Kammel Franz Pawlek

文章页码：144 - 148

Key words：acid leaching ;nickel; cobalt ;sulfide concentrate

Abstract: The acid leaching of fine ground nickel sulfide concentrate under atmospheric pressure was studied. The leaching experiments were performed with a pyrrhotite containing nickel sulfide concentrate and ferric ion as oxidant. The effects of attrition grinding, leaching temperature, concentration of sulfuric acid as well as formation of elemental sulfur on the leaching rate were investigated. The experimental results demonstrated that attrition grinding as a technique of mechanical activation can offer significant advantage for hydrometallurgical processing of complex metal sulfide ores and concentrate.