RAW CONCENTRATE FOR MANUFACTURING GLASS AND CERAMICS, AND METHOD OF PREPARATION THEREOF Russian patent published in 2000 - IPC

Abstract RU 2152363 C1

FIELD: glass and ceramic industries, more particularly replacement of calcined soda and potash during cooking of glass. SUBSTANCE: raw concentrate comprises granules including silica particles coated with sodium and potassium silicates. Density of concentrate in 0.8-0.95 g/cm. Granule size is not greater than 0.2 mm. Concentrate is prepared by mixing silica with potassium and sodium hydroxides at ratio thereof (3-4):1, by evaporation of mixture at 100-200 C and maintenance for 1-1.5 h. Heat treatment is then carried out 350-550 C. EFFECT: accelerated processes of cooking and clarification of glass compound and increased specific volume thereof. 5 cl, 4 dwg

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RU 2 152 363 C1

Authors

Molchanov V.N.

Poljakov V.N.

Demidov I.A.

Skripkin V.E.

Dates

2000-07-10—Published

1999-06-18—Filed