POROUS CERAMIC HAVING AMORPHOUS PORE SURFACE AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To obtain a porous ceramic having an amorphous pore surface, excellent in removing performances of harmful and contaminated components in various drain and waste liquor treatment, by molding a mixture of clay, a pore-forming material and water, drying and heating and baking the...

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Bibliographic Details
Main Author KUMAOKA SHUNICHI
Format Patent
LanguageEnglish
Published 21.04.1998
Edition6
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To obtain a porous ceramic having an amorphous pore surface, excellent in removing performances of harmful and contaminated components in various drain and waste liquor treatment, by molding a mixture of clay, a pore-forming material and water, drying and heating and baking the dried molded product under specific conditions. SOLUTION: In this method for producing a porous ceramic by mixing clay with a pore-forming material and water, molding the mixture into a proper shape, drying and heating and backing the dried molded product at 1,200-1,500 deg.C, the molded product is maintained at 600-800 deg.C for 3-7 hours in the heating process. In this case, preferably the molded product is heated from a normal temperature to 600-800 deg.C for 5-15 hours. Preferably, the molded product is baked at 1,200-1,500 deg.C for 4-8 hours. The objective porous ceramic having an amorphous pore surface is obtained by this method.
Bibliography:Application Number: JP19960250454