| 摘要 |
An improved process for the removal of organic matter from bauxite ore containing gibbsite comprises heating the ore under roasting conditions including a roasting temperature of from about 400 degrees C. to about 600 degrees C. with oxygen-containing roasting gas having a moisture content of less than 1% by volume water until the water of crystallization of the alumina present in the treated product is less than 0.5 mole per mole of alumina. |
