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US 6,743,383 B2Granted
Process for the production of ceramic tiles
AssigneeCouncil of Scientific and Industrial Research
InventorsSwapan Kumar Das, Karun Kant Singh, Sanjay Kumar, Uma Sunker Das
Life of this patent
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Abstract
The present invention is directed to an improved process for the production of ceramic tiles using industrial wastes. The invention particularly relates to an improved process for the production of ceramic tiles using industrial wastes such as iron ore slime, fly ash and blast furnace slag.
Claims14
A process for the production of ceramic tiles using industrial wastes which comprises:
- (a) intimately mixing iron ore slime in the range of 30 to 50% by weight, fly ash 10 to 25% by weight, blast furnace slag 5 to 20% by weight, aluminosilicate minerals 25 to 50% by weight, additives 5 to 15% by weight, the balance comprising water, for a period in the range of 6 to 10 hours,
- (b) drying the wet mixed raw materials in step 1(a) into a dry powder,
- (c) granulating the dried powder using an organic liquid binder,
- (d) compacting the granulated powder to form tiles of the desired size,
- (e) drying the compacted tiles slowly at a temperature in range of 90 to 120° C. for a period in the range of 10 to 15 hours.
2 more elements
Dependencies are inferred from the claim text.