| 摘要 |
PROBLEM TO BE SOLVED: To obtain active carbon excellent in molecular sieve effect and adsorptive removing performance by binding or coating carbon black as the major component with carbon. SOLUTION: This active carbon is obtained by adsorbing a resin to carbon black followed by heat treatment in a nonoxidative atmosphere to carbonize the resin. By the heat treatment, the carbon black particles are mutually bound via carbon or coated with carbon. For the carbon black, various kinds thereof can be used; for example, carbon black 10-70 nm in primary particle size. The resin to be used is e.g. a styrene-acrylic resin, polyester resin, epoxy resin. This active carbon can be produced, for example, by the following process: the resin is dissolved in a solvent followed by adding the carbon black to the resultant solution which, in turn, agitated and then subjected to a beads mill into a mill base dispersion; subsequently, the dispersion is put to centrifugal classification, and the resulting precipitate is dried to remove the solvent, and then baked in a nonoxidative atmosphere. |
