METHOD FOR PRODUCING POROUS CALCINED BODY

PROBLEM TO BE SOLVED: To obtain porous calcined bodies having prescribed strength and high porosity with a small amount of a binder. SOLUTION: A fine particulate binder 4 is added to ash 1 of sewage sludge by 1-10 wt.%, they are granulated to a prescribed grain size and the resulting granules are dr...

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Hauptverfasser:	TOYOSHIMA MASAFUMI, SAWAMURA SEISUKE, INOUE KOICHI, MIYAUCHI SHUHEI
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED DISPOSAL OF SOLID WASTE FISHING FORESTRY HORTICULTURE HUMAN NECESSITIES HUNTING LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL RECLAMATION OF CONTAMINED SOIL SOIL REFRACTORIES SLAG THEIR RELEVANT APPARATUS TRANSPORTING TRAPPING TREATMENT OF NATURAL STONE WATERING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain porous calcined bodies having prescribed strength and high porosity with a small amount of a binder. SOLUTION: A fine particulate binder 4 is added to ash 1 of sewage sludge by 1-10 wt.%, they are granulated to a prescribed grain size and the resulting granules are dried and calcined at a prescribed temperature below the melting point for a prescribed time. The objective porous calcined bodies 12 are produced with such a small amount of the binder, the recycling rate of ash of sewage sludge is increased and the production cost of the calcined bodies is lowered.