Consecutive thermomagnetic beneficiation of Turkish lignites


Renda D., Onal G., Mustafaev I.

FUEL, vol.80, no.5, pp.641-644, 2001 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 80 Issue: 5
  • Publication Date: 2001
  • Doi Number: 10.1016/s0016-2361(00)00144-7
  • Title of Journal : FUEL
  • Page Numbers: pp.641-644

Abstract

The results of investigations of beneficiation regularities of Tavsanlt-Omerler lignites in a two-stage consecutive process of heat treatment and magnetic separation are presented. After thermal treatment of lignite samples in a rotary kiln at temperatures ranging from 370 to 650 degreesC, the application of the REMS magnetic separator produces a product higher in calorific value (6727 kcal/kg) and lower in sulphur (1.27 %) and ash (8.5%) content. The mechanisms of the process have been investigated by scanning electron microscopy, chromatography, electron spin resonance, X-ray diffractometry, derivatography and chemical analysis.