| 摘要 |
PROBLEM TO BE SOLVED: To obtain a porous carbon formed body having uniform fine pores by forming a mixture of a specific filler of an infusible substance with a pitch having a high softening point, performing a treatment for making it infusible, burning and carbonizing. SOLUTION: This porous carbon formed body having uniform fine pores having >=300<2> BET specific surface area and <=10Å middle pore diameter, is obtained by first obtaining a pitch having a high softening point (A) having >=180 deg.C softening point and <=5wt.% heat loss at <=300 deg.C by bringing a formed body obtained by forming a heavy oil having 0.8-1.2 C/H atomic ratio and not containing a portion insoluble to a BTX solvent or a pitch having a low softening point of <=150 deg.C softening point measured by a temperature gradient method into a particle-like, a powder-like or a fiber-like shape having <=100μm diameter into contact with an organic solvent capable of leaving >=10wt.% as an insoluble portion for extracting a light component, then, obtaining an infusible component (B) by performing a treatment to make the component (A) infusible under an atmosphere not containing oxygen, and next, by mixing the component (A) with 20-70wt.% component (B), forming so as to become <=5mm minimum distance from its center to the outer surface thereof, performing the treatment for making the same infusible under the atmosphere not containing oxygen, burning under an inert atmosphere and carbonizing. |
