Ceramic process

Claim 1

THE METHOD OF PRODUCING CERAMIC PRODUCTS WHICH COMPRISES FORMING A DILUTE SOLUTION OF A SOLUBLE SILICATE IN WATER HAVING A CONCENTRATION OF SIO2 IN THE SILICATE SOLUTION OF BETWEEN 0.75% AND 2.4%; PARTIALLY NEUTRALIZING SIAD SOLUTION BY THE ADDITION THERETO OF AN ACID REAGENT; ADDING TO SAID PARTIALLY NEUTRALIZED SOLUTION BEFORE IT HAS GELLED, DRY MATERIALS IN THE FORM OF AN ACID CONTAINING CLAY, KYANITE AND A FINELY DIVIDED COMBUSTIBLE CELLULOSE MATERIAL; CASTING THE RESULATING MIXTURE IN A MOLD; RETAINING THE MIXTURE IN SAID MOLD FOR A SUFFICIENT PERIOD OF TIME SO THAT THE NATURALLY CONTAINED ACIDS PRESENT IN THE CLAY AND SAID ORGANIC SUBSTANCE SERVE TO EFFECT FURTHER NUETRALIZATION OF TH ESOLUTION FORMING MATERIALS SO AS TO ACHIEVE A PH BETWEEN 7.2 AND 7.9 WHEREBY TO EFFECT DEVELOPMENT IN SAID MATERIALS OF A UNIFORMLY DISTRIBUTED, NON-GRANULAR SILICATE GEL; FOLLOWING THE SETTING OF SAID MATERIALS, REMOVING THE SAME FROM THE MOLD AND DRYING THE SAME; AND THEREAFTER FIRING THE PRODUCT AT HIGH TEMPERATURE.