CERAMIC COMPOUNDS Russian patent published in 1999 - IPC

FIELD: ceramic industry, more particularly manufacture of domestic porcelain products and porcelain for sanitary and building purposes. SUBSTANCE: ceramic compound comprises, wt %: clay, 18-20; kaolin, 20-22; quartz sand, 4-8; quartz-feldspar concentrate, 20-26; diopside, 18-20; and wollastonite, 18-20. Products are manufactured by slip casting in gypsum molds, plastic molding and semidry pressing, and semifinished product is finally fired at 1150-1200 C. EFFECT: lower firing temperature and improved technological properties of the ceramic compound. 3 ex, 2 tbl