A method for the production of spherical coal particles or spherical activated carbon particles

摘要

Disclosed herein is a process for producing spherical carbon particles in which a pitch or a heavy oil of a low softening point is mixed with an organic solvent to reduce the viscosity thereof and is fused and shaped into spherical particles. Added to the pitch or heavy oil is a material capable of elevating the softening point thereof which is selected from the group consisting of mononitro aromatic compounds, polynitro aromatic compounds, quinones and polycarboxylic acid anhydrides. Also mixed with the pitch is a material capable of preventing the formation of voids in the material, which may be fluid or solid paraffin, polyethylene, alicyclic hydrocarbons, alkylcyclohexanes, fatty alcohols and silicone oil.