Activated carbon is prepared from a relatively large number of starting lignocellulosic products by the method of chemical activation with H_3PO_4 and the acid remaining in the residual liquid generated after the impregnation treatment is analyzed with a view to its transformation into a fertilizer such as potassium/calcium phosphate. The activated carbons are characterized texturally. Obtained results show that the precursor greatly y influences the porous structure of the activated carbon. It also significantly affects the amount of phosphoric acid present in the residual liquid.
展开▼
