ABSTRACT
Carbonization of crushed vegetable materials was carried out for 60 min in argon stream in tubular quartz reactor placed in an oven. Some experiments were carried out in rotating stainless steel reactor. A more complete study of physical properties of sorbents will bring greater clarity to the understanding of sorbents selectivity and mechanisms of their action. In this regard, it is very interesting to study the paramagnetic properties of inorganic systems by the electron paramagnetic resonance method (EPR). The chapter presents some results obtained by the EPR method during the study of carbonized samples of walnut shell, grape seed, birch cuttings, apricot stones, rice husks, phragmites and wheat bran, depending on the carbonization temperature, as well as the sorption of certain metal salts by walnut shell and phragmites. In connection with good sorption characteristics of sorbent based on carbonized phragmites, is interesting to study the paramagnetic characteristics of investigated sorbent.
