Benefciation studies on recovery and in-depth characterization of ilmenite from red sediments of badlands topography of Ganjam District,Odisha,India

This paper deals with the recovery of ilmenite mineral from red sediments of badlands topography and suggested flowsheet with material balance.The results of these investigations reveal that the red sediment samples contain 33.2%total heavy mineral,in which ilmenite mineral concentrate is 28.71%(by weight).The ilmenite concentrate recovered from red sediment sample by physical benefciation process,which included scrubbing,desliming,gravity concentration,magnetic and electrostatic separation,contains 99.41%grade with 97.3%recovery.The ilmenite mineral concentrate recovered from red sediments is also suitable for industrial applications.The characterization studies on ilmenite reveal that the TiO2percentage is marginally increasing from 46.69%to 47.86%with increasing magnetic intensity from0.46 to 1.55 T.

用添加剂改善磁性氧化铁粉碎性能

长期以来,人们一直在努力寻求降低湿式介质研磨设备高能耗的方法。笔者从一篇专业论文中注意到,在湿式研磨粉碎过程中使用化学添加剂来改善物料的特性,便能提高物料的可粉碎性。为此,笔者作了广泛调查研究,以磁性氧化铁(又称四氧化三铁,以颜料和擦光剂原料为物料,配以不同的添加剂进行试验。结果证明,使用氧化钙为添加剂,物料的粉碎效果明显改善。电子扫描显微照片表明,在氧化钙添加剂作用下,磁性氧化铁表面蜂窝结构组织骤增,因而变得松脆,易于粉碎。