METHOD FOR RECYCLING SUPERCRITICAL WASTE LIQUID GENERATED DURING SILICA AEROGEL BLANKET MANUFACTURING PROCESS

摘要

The present invention relates to a method of regenerating a supercritical waste liquid generated during the manufacturing process of a silica airgel blanket, and a method of manufacturing a silica airgel blanket that reuses the regenerated supercritical waste liquid, and more particularly, by adding sulfuric acid to the supercritical waste liquid. By removing the ammonium ions present in the supercritical waste liquid in the form of ammonium sulfate salt and reusing it, the method of regenerating supercritical waste liquid and the method of manufacturing a silica airgel blanket that can reduce manufacturing cost and prevent deterioration of the thermal insulation performance of the silica airgel blanket. to provide.