Non-aged inorganic oxide-containing aerogels and their preparati

Details Non-aged inorganic oxide-containing aerogels and their preparati Non-aged inorganic oxide-containing aerogels and their preparati

1984-12-24

1986-10-28

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

502233, 502235, 502236, 502239, 502343, 502350, 502355, 502405, 423338, B01J 2104, B01J 2108

Patent

active

046199080

ABSTRACT:
The invention is directed to inorganic oxide-containing aerogels and the method of preparing such oxide-containing aerogels which are characterized by high surface areas and high pore volume. The preparation comprises dissolving the inorganic alkoxide or metal salt in a solvent optionally containing a catalytic amount of an acid or base and hydrolyzing the metal compound which is then further treated with a fluid at or above its critical temperature and pressure to extract the solvent.

REFERENCES:
patent: 1819354 (1931-08-01), Behrman
patent: 2093454 (1937-09-01), Kistler
patent: 2188007 (1940-01-01), Kistler
patent: 2647875 (1953-08-01), Marisic
patent: 3193492 (1965-07-01), Plank et al.
patent: 3672833 (1972-06-01), Teichner et al.
patent: 3673111 (1972-06-01), Hovarth et al.
patent: 4489172 (1984-12-01), McDaniel

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