116 CHAPTER 6
DEHYDRA.ED
/ PORE-FILLING
PELLETS
SOLUTION
PORE-SATURATED
PELLETS
j """
IMPREGNATED PELLETS
Figure 6.18. Steps in impregnation of the active component.
-- INCREASING RATE OF DRYING _
o o
Figure 6.19. Pore and particle profiles after drying.