Inorganic oxide-based materials with monodispersed particle size
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United States of America Patent
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Aug 26, 1997
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Jan 4, 1994
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Oct 17, 1991
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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.
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