Method for preparing spherical inorganic oxide-based materials h

Details Method for preparing spherical inorganic oxide-based materials h Method for preparing spherical inorganic oxide-based materials h

1992-10-14

1994-04-19

Chaudhuri, Olik

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

501 12, 25231501, 2523156, C01B 3316

Patent

active

053043642

ABSTRACT:
A method for preparing inorganic oxide-based materials of spherical form with substantially monomodal distribution, consisting of forming a sol of at least one of the inorganic oxides of interest, adding to said sol a solvent immiscible with the sol, finely dispersing the obtained two-phase mixture into a dispersion of particles of equal diameter, growing said particles by limited coalescence to the desired diameter, gelling said mixture by adding a second solvent containing a gelling agent, and removing the solvent.

REFERENCES:
patent: 4981819 (1991-01-01), Rinn
patent: 5189900 (1993-02-01), Masi et al.

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