2008•International Journal of Coal Preparation and UtilizationRequires access
A Novel Beneficiation Scheme for A Medium Coking Coal Fines from India
A. Das, Biswajit Sarkar, Ari Vidyadhar, Alok Kumar Singh, K K Bhattacharyya
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Abstract
Beneficiation strategy for a medium coking coal fines from India has been studied. These coal fines have good washability characteristics indicating about 60% yield at 14% ash in clean coal. But the release analysis results indicate poor flotability of these fines. Only about 30% yield was achievable at 14% ash in the clean coal. Various schemes for flotation including two-stage flotation, split flotation, spiral, and a combination of spiral and flotation were studied using a 15-cm diameter Jameson Cell. Combination of spiral and Jameson Cell flotation achieved approximately 69% yield at 17.5% ash.