| 摘要 |
PURPOSE:To provide a good adsorbent by mixing and sticking together the spherical particles having a specific diameter and the ultrafine particles consisting of carbonaceous materials by mechanochemical method to coat the surfaces of the former uniformly with the latter, fixing them firmly and heat treating and baking. CONSTITUTION:The spherical particles consisting of phenol resin, naphthalene resin, furan resin, etc., and varying in size from 5mu to 120mu in diameter and the ultrafine particles consisting of carbonaceous materials (e.g., carbon black, colloidal graphite and graphite powder) and varying in size from 15nm to 100nm in diameter are mixed together by mechanochemical method, whereby the surfaces of the former are coated uniformly and firmly with the latter to form a porous spherical body, which, after its temperature is raised at a rate of 10-40 deg.C per hour for heat treatment at a temperature of 100-400 deg.C, is baked at a temperature of 800-3000 deg.C to obtain a carbonaceous and graphitized porous spherical adsorbent. |
