Deposition of Silica Aluminum Using an Alkali Solution of Fly Ash

This study investigated the deposition process of fly ash alkali solution containing silica. The effects of deposition pH, temperature, speed, and time on silicon and aluminum deposition rates were studied. Oil value was analyzed because of the presence of aluminum silica in white carbon black. Results show that the optimum deposition conditions are as follows: pH of 7, deposition temperature of 60 °C, deposition rotation rate of 100 r/min, and deposition time of 4 h.