| abstract |
The present invention relates to a novel alumina gel having a high dispersion index, in particular higher than 70%, a crystallite size of 1 to 35 nm, and a sulfur content of 0.001 to 2% by weight, and 0.001 Sodium content of % by weight to 2% by weight, percent by weight expressed relative to the total mass of the alumina gel. The invention also relates to a process for the preparation of said gel comprising at least one step of precipitating at least one aluminum salt, at least one step of heating the resulting suspension and a final heat treatment step for forming an alumina gel . |