Process for the manufacture of a mesoporous product

Process for the manufacture of a mesoporous product comprising the following successive steps: a) preparation of a slip comprising: -a solvent, -an additive, -more than 4%, as percentage by volume based on the slip, of a powder formed of ceramic particles, b) oriented freezing of the slip, so as to...

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Bibliographische Detailangaben
Hauptverfasser:	AMIROUCHE IDRIS, KLOTZ MICHAELA, GUIZARD CHRISTIAN GILBERT, DEVILLE SYLVAIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	Process for the manufacture of a mesoporous product comprising the following successive steps: a) preparation of a slip comprising: -a solvent, -an additive, -more than 4%, as percentage by volume based on the slip, of a powder formed of ceramic particles, b) oriented freezing of the slip, so as to form a block comprising ice crystals separated by walls, c) removal of the ice crystals from said frozen slip block, optionally removed from the mold, so as to obtain a porous preform, d) removal of the additive, so as to obtain a preformed mesoporous product, the additive and the amount of additive being chosen so that the additive is present in a mesopore-forming micellar phase in said walls, more than 25% by volume of said ceramic particles exhibiting a size less than twice the size of the micelles of said mesopore-forming micellar phase.