| 摘要 |
PURPOSE:To easily produce the title active carbon causing no pulverization and having high hardness, elasticity, strength, and desired shape with low cost by activating a granular sintered porous carbonaceous body obtd. by calcining a specified granular porous body of chlorine-contg. vinyl resin in inert gas atmosphere. CONSTITUTION:Chlorine-containing vinyl resin particles having <=2mm largest edge size of the particles such as chlorinated PVC having pref. 60-71wt.% degree of chlorination, etc., are charged or scattered in a vessel having a desired shape. After installing the vessel into a heating oven, etc., the vessel is heated at a temp. higher than the softening point and below the melting point of said resin particles to melt the surface layer of the particles exerting, if necessary, vibration using a vibrator or compression, to cause spot adhesion between the resin particles, obtg. thus porous body of chlorine- contg. vinyl resin particles. Then, the porous body is heated, if necessary, at 150-300 deg.C in oxidizing atmosphere to execute insolubilizing and infusibilizing treatment, then the product is calcined at >=700 deg.C in inert atmosphere such as N2, etc., and obtd. granular sintered carbonaceous porous body is activated with activating gas such as steam, CO2, O2, etc., to cause corrosion of the surface of carbonized product by the oxidizing reaction of the surface of carbon. |
