Methods of more rapidly producing aerogel products by means of a rapid solvent exchange of solvent inside {HEAD ~ wet gels} with {TAIL ~ supercritical CO2} by injecting supercritical, rather than liquid, CO2 into an extractor that has been pre heated and pre pressurized to substantially supercritical conditions or above 
Methods of more rapidly producing aerogel products by means of a rapid solvent exchange of solvent inside { HEAD ~ wet gels } with { TAIL ~ supercritical CO2 } by injecting supercritical , rather than liquid , CO2 into an extractor that has been pre heated and pre pressurized to substantially supercritical conditions or above
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