నైరూప్య

Beneficiation of Low Grade Lignite of Barmer Rajasthan (India)

P. K. Bhargava, A. V. Singh and K. L. Menaria

The Lignite mining waste at Giral mining site in Barmer district of Rajasthan referred as claylignite interburden has been identified as a potential source of energy. The interburden consists of finely dissipated lignite in clay. The upgradation of this waste has been carried out through development of cost effective sustainable technology. The carbonaceous clay with calorific value of the order of 2500 kcal/kg have been obtained.