Amorphous silica particles, a method for producing same, and cat

Details Amorphous silica particles, a method for producing same, and cat Amorphous silica particles, a method for producing same, and cat

1985-03-27

1987-08-25

Dees, Carl F.

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

Catalyst or precursor therefor

Silicon containing or process of making

502232, 502242, 502243, 502246, 502250, 502258, 502263, 423335, B01J 2108

Patent

active

046893156

ABSTRACT:
Amorphous, approximately spherical silica particles prepared by the acidic hydrolysis of an approximately spherical synthetic calcium silicate having a uniform microgranular structure on their external surfaces and a structure in the interior thereof which structure only weakly recall the original crystal needle structure of the starting material. The average external particle size is from 15 to 80 .mu.m, the apparent particle volume is from 1.3 to 3 cm.sup.3 /g, and the specific surface area is from 250 to 800 m.sup.2 /g. The silica particles are particularly suitable for use as catalyst supports.

REFERENCES:
patent: 2871200 (1959-01-01), Doumani
patent: 3501324 (1970-03-01), Kubo
patent: 4330519 (1982-05-01), Takahashi et al.
patent: 4368303 (1983-01-01), McDaniel

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