| abstract |
HIGH DISPERSIBILITY GEL AND ITS PREPARATION PROCESS A new alumina gel is described, presenting a high dispersibility index, and, in particular, a dispersibility index greater than 70%, a crystallite size between 1 and 35 nm, as well as a sulfur content comprised between 0.001% and 2% by weight and a sodium content comprised between 0.001% and 2% by weight, the weight percentages being expressed in relation to the total mass of alumina gel. The present invention also relates to the process for preparing such a gel comprising at least one step of precipitating at least one aluminum salt, at least one step of heating the suspension obtained and a final step of heat treatment to form the alumina gel. |