| abstract |
The invention discloses a method for modifying the surface properties of alumina, the method comprising the following steps: (i) forming an aqueous mixture, the aqueous mixture comprising 1 part by weight of alumina, and equivalent to 0.001 to 0.1 parts by weight (ii) equilibrate the mixture for at least five minutes; (iii) raise the pH of the mixture to 6 to 8; and (iv) dry the mixture, wherein when the aluminum When the compound is a monomer, the process includes the additional step of raising the pH of the mixture to 3.0 to 5.0 between steps (i) and (ii). |