Enrichment of fine specular hematite tailings by Mozley multi-gravity separator for use in the paint industry

Cilingir Y., Sen S., SEYRANKAYA A., GÜLER E.

8th International Mineral Processing Symposium (IMPS-2000), Antalya, Turkey, 16 - 18 October 2000, pp.93-96 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.93-96
  • Dokuz Eylül University Affiliated: Yes


Specular hematite is an important pigment used in anti-corrosion paints. The concentrates, which can be used in pigment production, should contain over 95% Fe2O3 and be ground below 100 microns. The experiments were conducted to obtain a paint-grade specular hematite concentrate by using Mozley multi-gravity separator. Specular hematite tailings coming from Aydin-Karacasu district containing 50-58% Fe2O3 grade was subjected to MGS tests. The effects of drum rotational speed (140-200 rpm) under different tilt angles (4 degrees -5 degrees -6 degrees) were examined to determine the optimum recovery conditions. Other parameters have been kept at constant rates as follows; wash water rate (5 l/min), feed rate (1.5 l/min), amplitude (19 mm), frequency (5.8 cps). The aim of this study was to produce saleable specular hematite concentrate that is suitable for paint industry with a final concentrate assaying 97.91% Fe2O3 with recovery of 82.51% under optimal operating conditions.