Methods of more rapidly producing {TAIL ~ aerogel products} by {HEAD ~ means} of a rapid solvent exchange of solvent inside wet gels with 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 { TAIL ~ aerogel products } by { HEAD ~ means } of a rapid solvent exchange of solvent inside wet gels with 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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