METHOD FOR GLASS MAKING Russian patent published in 2003 - IPC

FIELD: glass industry. SUBSTANCE: invention relates to technology of making glass and glass articles. Glass charge is prepared by stirring preliminary wetted sand with soda ash and dye prepared by preliminary mixing sodium sulfate and coal followed by addition of ground broken glass and additional stirring. Sand wetted to value 3-5.5% at temperature 30-50 C is stirred successively with soda ash, then dye, feldspar, chalk, dolomite, boric acid, sodium sulfate are added in the following ratio of components, weight p. p. /100 weight p. p. of glass mass: sand, 65-70; soda ash, 20- -25; sodium sulfate, 0.1-1; coal, 0.5-2; feldspar, 5-10; chalk, 9-13; dolomite, 5-8; boric acid, 1-3. Invention provides the enhancement of uniformity and quality of glass. EFFECT: improved making method, expanded range of using. 2 cl