Research carried out on sulphur in Assam coals are reviewed. It is intended to provide
a general overview with some recent advances on the forms of sulphur in these coals and their
desulphurization and recovery in the forms of elemental sulphur or useful compounds. Greater
emphasis is given on a new form of sulphur, i.e., secondary sulphur, in Assam coals. Studies on
sulphur in Assam coals would be potentially useful in coal utilization
