Stabilized silica gel and process for making same

Details Stabilized silica gel and process for making same Stabilized silica gel and process for making same

1985-03-22

1986-06-17

Rosenberg, Peter D.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423339, C01B 3316

Patent

active

045955786

ABSTRACT:
There is provided an improved process for producing a silica gel having improved pore volume relative to conventional silica gels which comprises the steps of gelling an aqueous alkali metal silicate with an aqueous acid, washing the resulting gel to remove salt or salts and acid, and soaking the gel in an aqueous solution of a water soluble aluminum salt to impart from 0.1% to 0.7% by weight aluminum on the dry basis to said gel, drying and reducing the particle size of the dried gel to from 2.0 to 15 microns, said particles having a pore volume in the range of 1.25 to 2.25 cm.sup.3 /gram. and a product produced by said process.

REFERENCES:
patent: 3794713 (1974-02-01), Aboutboul
patent: 3959174 (1976-05-01), Winyall
patent: 4256682 (1981-03-01), Denton

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