PSEUDORUTİLİN ASİDİK LİÇİNE DEMİR İLAVESİ VE MEKANİK AKTİVASYONUN ETKİSİ

This study presents the effect of mechanical activation on iron removal from pseudorutile to obtain synthetic rutile by
hydrochloric acid leaching with or without iron addition as a reducing agent. Iron and titanium extraction efficiencies in
leaching for 3 h without iron addition are 64% and 49%, respectively. After mechanical activation of pseudorutile for
30 min, iron and titanium extraction efficiencies increased to 82% and 62%, respectively. In case of iron addition to
leaching step, mechanical activation has no prominent effect on the iron and titanium extractions. On the contrary, most
of iron content in pseudorutile dissolved but titanium oxide remains at the solid part. Effect of iron addition to the
leaching step was investigated with x-ray diffraction analysis of solid part.