The influence of the conditions of aerosil dispersion spray drying process in the medium of overheated water steam on the
formation of microspheric granules and their porous structure was studied. Water and ammonium solutions as aerosil particles
dispersing agents and water steam and air as heat carriers were used. It was stated that the effects of spray drying depend
on the kind of dispersing medium and on the conditions of atmosphere and temperature at which drying and forming of aerosilogel
granules takes place.