METHOD AND INSTALLATION FOR MANUFACTURING AN AIRCEL

摘要

The present invention relates to a method for manufacturing a granulated airgel (1) from a precursor (2), comprising the following steps: - mixing the precursor (2) with a synthetic solvent (3) and a hydrolysis agent, like water and, if appropriate, a catalyst (4), to produce a gel, - granulate the resulting product, in particular by cutting a jet of gel, to produce granules, - keep the granules in contact with the synthetic solvent (3) and the hydrolysis agent, washing the granules by adding a washing solvent to extract in particular the hydrolysis agent and, if appropriate, the catalyst (4), - drying the granules to extract synthetic (3) and / or washing solvents, using excess supercritical co2, said granulation steps, maintenance, washing and drying are performed at a higher pressure than that of the critical point of co2 and these conditions are maintained between these steps. The present invention also relates to a facility specially configured to implement the method according to the invention.