Induced roll magnetic separator applied for high grade ilmenite separation from mining tailing

Wiwik Dahani (Department of Mining Engineering, Faculty of Earth Technology and Energy, Universitas Trisakti)
Rita Sundari (Department of Mechanical Engineering, Faculty of Engineering, Universitas Mercu Buana)
Subandrio Somali (Department of Mining Engineering, Faculty of Earth Technology and Energy, Universitas Trisakti)
Irfan Marwanza (Department of Mining Engineering, Faculty of Earth Technology and Energy, Universitas Trisakti)
Andriyani Andriyani (Department of Mining Engineering, Faculty of Earth Technology and Energy, Universitas Trisakti)
Djoko Hartanto (Department of Chemistry, Faculty of Science and Data Analytical, Institute Technology Sepuluh November)
Khuzaimah Arifin (Fuel Cell Institute, Universiti Kebangsaan Malaysia)
Ratna Ediati (Department of Chemistry, Faculty of Science and Data Analytical, Institute Technology Sepuluh November)

Sinergi
Vol 27, No 2 (2023)

This article aimed to separate ilmenite (FeTiO3) mineral from tin tailing applying a single splitter IRMS (Induced Roll Magnetic Separator). Ilmenite mineral is the substantial main source for TiO2. This work used air table middling for feeding. The mineral components of middling feeding from air table using grain counting analysis were found as follows: cassiterite (48.61%), ilmenite (21.36%), monazite (18.56%), pyrite (4.60%), zircon (5.85%), quartz (0.71%), anatase (0.27%), and tourmaline (0.02%), It was found that electrical current and opening of single splitter affected the degree of separation addressing to ilmenite recovery and ilmenite grade. The finding showed that current of 15 Ampere and single splitter with opening 4.25 cm yielded ilmenite recovery more than 74%. The high grade ilmenite (90.46 %) and recovery of 29.38% was obtained using 5 Ampere  with single splitter opening of 1.0 cm. Up to date, the study on ilmenite separation from tailing only focused on the effect of current, however, the effect of single splitter magnetic separator  to enhance ilmenite recovery from other paramagnetic minerals such as monazite, siderite, xenotime and tourmaline has not yet been reported.