MANUFACTURING METHOD OF HIGH POROUS ALO(OH) GEL

摘要

A manufacturing method of high functional AlO(OH) gel is provided to have excellent function by injecting gradually a mixture of Al2(SO4)3 and Na2SO4, hydrolyzing it under specific pH condition, segregating gel and aging and filtering it. A manufacturing method of high functional AlO(OH) gel comprises steps of: adding sodium sulfate(Na2SO4) in aluminium sulfate(Al2(SO4)3) aqueous solution of which a concentration of alumina(Al2O3) is 2.0 ~ 8.0 weight% and manufacturing a mixture; injecting sodium carbonate(Na2CO3) aqueous solution in the mixture, making pH of the solution to 7~8, hydrolyzing it and segregating AlO(OH) gel precipitate; aging and filtering the gel precipitate and manufacturing a high functional AlO(OH) gel of which specific surface area is 300~500 m^2/g and pore volume is 0.5~1.0 cc/g.