This research was carried out to study the changes of surface area, yield and pore size distribution with that of principal factors in manufacturing powdered activated carbons for liquid phase from waste of urea resin.
The surface area was determined...
This research was carried out to study the changes of surface area, yield and pore size distribution with that of principal factors in manufacturing powdered activated carbons for liquid phase from waste of urea resin.
The surface area was determined by (BET method) adsorption of nitrogen gas at low temperature.
The pore size distribution was determined with an mercury penetration porosimeter while the distribution of pores,
The results are summerized as follows;
1. The activation temperature and time, indicated the maximum adsorptivity and largest quality of the specific surface area, are 750℃ and 3hrs.
2. The adsorptivity decreases, if the weight percentages of the activator and the promotor to raw material are over 200 and 100 respectively.
3. The yield is 35-50% in weight and it decreased with the activation temperature and time.
4. On pore Volume, pure urea resin>waste of urea resin>P.V.C. resin. But it is guessed to be different according to the kind of added agents.