Silica aerogel produced under subcritical conditions

Details Silica aerogel produced under subcritical conditions Silica aerogel produced under subcritical conditions

1995-10-05

1998-05-05

Nguyen, Ngoc-Yen

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423335, C01B 33158

Patent

active

057469920

ABSTRACT:
Liquid comprising from 93 to 100 percent by weight alcohol is removed from silica alcogel at subcritical temperature to produce silica aerogel. The silica aerogel produced by the method of the present invention not only has high porosity, but in most instances it also has a narrow distribution of small pore sizes. The silica aerogel is preferably reduced in size so as to form particulate silica aerogel.

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