| abstract |
A method for producing alumina comprising providing an alumina slurry, aging the slurry, adding a tricarboxylic acid to the aged alumina slurry, further aging the slurry, and spray drying, wherein the process is conducted simultaneously with the tricarboxylic acid, A method is described which is characterized by the addition of a dicarboxylic acid after the second aging and before spray drying. The alumina produced is dispersible at a pH of greater than 95% and greater than 9.5, and has a viscosity of less than 0.4 Pa.s at 10 wt.% Sol. |