Continuous supercritical drying method of aerogel particles

摘要

The present invention relates toFor drying gel particlesIn particular, a method for manufacturing aerogelsProviding a suspension comprising gel particles (P1) and solvents (LM);Introducing said suspension into a column where carbon dioxide flows in countercurrentIncluding drying aerated gel particles from the columnThe suspension is introduced into the top region of the columnThe dried aerogel particles are removed in the lower region of the columnThe pressure and temperature of the columnCarbon dioxide and solvent mixtures are substantially supercriticalOr set to be supercritical.Related to the method.The aerogel particles can be discharged through both the exhaust container and the continuous pressure reduction.The present invention further comprisesAerogel particles obtained or obtained by such methodsAndFor medical and pharmaceutical applicationsAs a support material for additives or additives for foodAs a catalyst carrierCosmeticsHygieneFor cleaning and cleaning applicationsFor sensor manufacturingFor insulation materialOr as a core material for VIPThis invention relates to the use of aerogel particles according to the present invention.