To provide a method for producing a spherical active carbonaceous material controlled in particle size and/or its distribution, and to obtain such a spherical active carbonaceous material by the above method.
This method for producing a spherical active carbonaceous material comprises the following consecutive processes: (1) a homogeneous mixed liquor composed of a phenolic resin, a cellulose derivative and a solvent is prepared, (2) the solvent is removed from the mixed liquor to cause the phase separation of the phenolic resin and the cellulose derivative, (3) the phenolic resin is cured, (4) the cellulose derivative is removed from a composite made from the phenolic resin cured product and the cellulose derivative to obtain the phenolic resin cured product, and (5) the phenolic resin cured product is activated, or baked in an inert gas or vacuum atmosphere and then activated to obtain the objective spherical active carbonaceous material 20 nm to 30 μm in average particle size, ≥ 300 m/g and pref. ≤0.5 in the standard deviation of its particle size distribution.
KOISO MIEKO
OU RINMEI
