| 主权项 |
1. A method of decreasing the viscosity of an alumina slurry to less than about 40 cps comprising milling the slurry comprising alumina feed material, water, and a dispersant agent;
wherein the alumina concentration is less than 55 wt. %; the dispersant agent concentration is more than 0.01 wt. %; and the dispersant agent has two or more carboxyl groups (COOH) and one or more hydroxyl groups (OH). |
