The relationship of the stability period of supersaturated silica with temperature

alumina concentration

alkali concentration and supersaturation was obtained under the hydrolysis condition. Furthermore

according to the kinetics theory of crystallized nucleation

the equation to calculate the supersolubility of silica in sodium aluminate solution was deduced as well

which correlated the supersolubility of silica with the stability period of supersaturated solute in solution.The mechanism of nucleation was also investigated through classical nucleation theory. Under the hydrolysis condition in alumina production

the nucleation mechanism was mainly heterogeneous.