Method for regenerating supercritical waste liquid generated during silica aerogel blanket manufacturing process

摘要

The present invention relates to a method for regenerating a supercritical waste liquid generated during a silica airgel blanket manufacturing process and a method for manufacturing a silica airgel blanket in which the regenerated supercritical waste liquid is reused. By adding sulfuric acid to the waste liquid to remove the ammonium ions existing in the supercritical waste liquid in the form of ammonium sulfate salt and reusing it, the manufacturing cost can be reduced and the heat insulation performance of the silica airgel blanket can be prevented from deteriorating. Provided are a regeneration method and a method for producing a silica airgel blanket.