Preparation of aerogels

Details Preparation of aerogels Preparation of aerogels

1985-08-05

1987-05-26

Lovering, Richard D.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

2523151, 2523156, 2523157, 423338, C01B 3312, F26B 300

Patent

active

046674179

ABSTRACT:
A process for the drying of inorganic hydrogels obtained from readily hydrolyzable compounds of the elements Al, Si, Ti, B, La, Zr, Cr, Sn, Th or Mg, and organic hydrogels based on gelatine, albumin or agar agar, from CO.sub.2, to give aerogels is easy to carry out industrially, and drying can be effected at from room temperature to 90.degree. C.
The resulting aerogels are transparent and have a low bulk density and low thermal conductivity.
The aerogels can be used as packing materials for liquid chromatography, as catalyst carriers, as substrates for enzymes and as adsorbents.

REFERENCES:
patent: 2093454 (1937-09-01), Kistler
patent: 2249767 (1941-07-01), Kistler
patent: 2443462 (1948-06-01), Kimberlin, Jr. et al.
patent: 3672833 (1972-06-01), Teichner et al.
patent: 4610863 (1986-09-01), Tewari et al.

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