| 摘要 |
<p>A process for treatment of carbonaceous materials comprises (a) heating a carbonaceous material in the absence of air to dry it and render it friable; (b) grinding the product of step (a) to a fine powder; (c) heating the product of step (b) in the absence of air to render it formable; (d) compacting the product of step (c) while still hot; (e) cooling the product of step (d); and optionally activating the product of step (e). Sawdust is a preferred carbonaceous material. Activation of the product of step (e) provides an activated carbon useful inter alia in the food, water treatment and brewing industries and in processes for the recovery of gold.</p> |
