Colloidal dispersion of an inorganic substance, the method of preparation and application to the production of a gel mixed and a porous ceramic material

摘要

P the invention described in the production of the colloidal dispersions and their conversion into a gel was mixed, or in a porous ceramic material. / p & & p & is dispersed in a liquid medium of the colloidal particles of an inorganic substance in order to form a ground and are dissolved therein a composed of an element of group iia or of group iiia inhibitors or of a rare earth oxides (). The drying of such a dispersion of a refractory oxide gives a gel which is mixed as a heating converted into a porous ceramic material. / p & & p & application: preparation of a catalyst or catalyst support. / p