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Washing of Low Volatile Coking (LVC) Coal: Is That Difficult?

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India is currently the third largest importer of coking coal. Coal import has been increasing on year to year basis. Significant share of the prognosticated coking coal reserves of India are low volatile coking (LVC) type which are at present primarily consumed by thermal power plants. Currently produced LVC coals are not very high in ash content but have very difficult washability characteristics. Investigations had been carried out in the past to assess the cleaning potential of LVC coal by crushing to −75 mm followed by pre-cleaning, secondary crushing and cleaning in a multi-product system. The present investigation re-examines the cleaning potential of LVC coal by fine crushing followed by cleaning only and examines issues perceived to be critical for large scale washing of LVC coal.

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Authors gratefully acknowledge the financial support received from Indian School of Mines Dhanbad to carry out the work.

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Correspondence to Divya Jyoti.

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Jyoti, D., Bhattachrya, S., Anupam, A. et al. Washing of Low Volatile Coking (LVC) Coal: Is That Difficult?. Trans Indian Inst Met 68, 649–660 (2015).

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