METHOD AND INSTALLATION FOR THE DEHYDROXYLATION TREATMENT OF ALUMINIUM SILICATE

The invention relates to a method and installation for the dehydroxylation treatment of aluminium silicate, in which the particles surrounding the aluminium silicate are subjected to a temperature of at least 500 deg. C. The particles are in the form of a dry powder and the dry powder (26) may be op...

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Bibliographische Detailangaben
1. Verfasser:	CADORET, GAEL
Format:	Patent
Sprache:	bul ; eng
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM HEATING INORGANIC CHEMISTRY LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRACTORIES SLAG THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method and installation for the dehydroxylation treatment of aluminium silicate, in which the particles surrounding the aluminium silicate are subjected to a temperature of at least 500 deg. C. The particles are in the form of a dry powder and the dry powder (26) may be optionally transported in a gas stream (30) at a temperature between 600 and 850 deg. C for a sufficient amount of time until the desired degree of dehydoxylation is achieved. The powder can be obtained from a hydrated base paste into fragments (23) and by deagglomarating the base paste fragments mechanically (in 3) in the presence of hot gas at temperature between 500 and 800 deg. C in order to form the dry powder (26). 21 claims, 3 figures