METHOD OF MANUFACTURING MODIFIED COAL AND MODIFIED COAL Russian patent published in 2017 - IPC C10L9/06 C10L5/00 C10L9/00 C10L5/06 C10L5/24 

FIELD: chemistry.

SUBSTANCE: invention discloses a method for manufacturing modified coal using low-grade coal as a raw material, comprising: dewatering low-grade coal to produce dehydrated coal; adding water to dehydrated coal to prevent any dust formation to produce water-containing coal; agglomerating water-containing coal to produce agglomerated coal; slow oxidating agglomerated coal to produce oxidized coal; crushing oxidized coal to produce crushed coal; and re-adding water to crushed coal to prevent any dust formation, and in the step of adding water to dehydrated coal, the added amount of water is adjusted so that the water content in the water-containing coal is 6 wt % or more to 16 wt % or less and in the step of re-adding water to crushed coal, the added amount of water is adjusted so that the water content of the crushed coal is from 10 wt % or more to 16 wt % or less. Also, the modified coal obtained by this method is disclosed.

EFFECT: reduction of dust formation and spontaneous ignition of modified coal.

4 cl, 3 dwg, 1 tbl