METHOD OF PREPARING RAW CONCENTRATE FOR GLASS MANUFACTURE Russian patent published in 2005 - IPC

FIELD: glassmaking industry.

SUBSTANCE: in manufacture of packaging, sheet, and other types of glasses, starting concentrate is supplemented by zircon-ilmenite ore concentration by-products and native soda at ratio (55-65):(15-25):(15-20), respectively. Concentrate preparation comprises dosage, stirring of raw components, moistening, and compaction on roll press with roll diameter 350 mm and rotation speed 22 rpm. Gap between rolls in compaction zone is 0.5 mm. Compaction is performed at as low pressure as 10-15 MPa with 5% of water added to concentrate. Compacted product is characterized by that by strength 1.2-1.6 MPa and density 2130 kg/m³.

EFFECT: extended resource of raw materials, lack of special binding agents in compaction stage, reduced glass melting time by 10-12%.

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