China Clay Lumps

China Clay is also known as kaolin & white clay. Primary clay formed by natural kaolinisation process. It is formed by the decomposition of some part of feldspar mineral. White in colour, Used in the ceramic slip casting process, pressing processes and forming process as a body former and filler. Chemical formula of china clay is Al2O3 2SiO2 2H2O

Processing of China Clay:
Processing of china clay difference from place to place but the essential step are the same. i)Excavating china clay. ii) Sieving process. iii) Settling process. iv) Filter press process. v) Drying process. vi) Packing and Transporting

Properties of China Clay:
China clay is Primary clay and generally found in white colour.

• Casting Rate: High casting rate in slip casting compared to ball clay.
• Particle size: Large particles when compared to Ball clay.
• Green MOR: Modulus of rupture is low compared to ball clay.
• Plasticity: Low plasticity compared to ball clay.
• Refractoriness: High Refractoriness.

Uses of China Clay:
China clay used in all Kind of ceramic product production and other products for its properties. Following are the primary uses of the china clay,

• Used In Sanitaryware industry
• Used in the tiles Production industry.
• Used in Refractory production.
• Used in the Paper industry as a filler.
• Used in Rubber industry as a raw material.
• Used in textiles industries.
• Used in the Dinnerware production process as a raw material.