This book had 10 chapters each, dealing with a specific topic contributed by selected Authors with acknowledged expertise in each of these specialized fields.

Y. A. Liu

This book provides a detailed account of recent developments in physical coal cleaning methods including: Relative density, Electrical conductivity, Magnetic susceptibility surface chemistry characteristics.

1. Chemical Comminution for Coal Cleaning 2. The Otisca Process 3. Physical Coal Cleaning with Scrubbing for Sulfur Control