Product

Kaolin (China Clay)

Kaolin (China Clay)

China Clay is a natural mineral found in partly decomposed granite, an igneous feldsparic rock. Chemically, kaolin is a hydrated aluminium silicate containing Al2O3.2SiO2.2H2O.It is a unique industrial mineral, which remains chemically inert over a relatively wide pH range and it offers excellent covering when used as a pigment or extender in coated films and filling applications.

Specification of Levigated China Clay

Physical & Chemical Analysis
Parameters PM-95 PM-94 PM-92 PM-90
L-Value 95.40 94.15 92.10 89.91
a-Value 0.48 0.53 1.03 1.23
b-Value 3.79 3.82 3.24 4.68
Shrinkage 3.10 % 2.95 % 3.10 % 2.85 %
Dry M.O.R (kg/cm2) 14.80 10.20 12.40 9.40
Fired M.O.R (kg/cm2) 92.10 87.00 82.50 86.90
Water Absorption 15.56% 19.21% 18.53% 13.91%
Water of Plasticity 32% 37% 32% 32%
Whiteness 86 84 75 71
Residue on 300# 0.25% 0.12% 0.41% 0.34%
SiO2 50.43% 51.05% 51.59% 51.10%
Al2O3 35.67% 34.11% 34.16% 34.37%
Fe2O3 0.38% 0.40% 0.60% 0.70%
TiO2 0.79% 0.94% 0.72% 0.64%
Cao Trace Trace Trace Trace
Mgo 0.08% 0.10% 0.19% 0.15%
Na2O 0.43% 0.21% 0.18% 0.10%
K2O 0.09% 0.05% 0.08% 0.06%
LOI (Loss on Ignition) 12.19% 13.25% 12.74% 13.16%
Temperature °C 1190-1200 1190-1200 1190-1200 1190-1200

Application of Levigated China Clay

  • Ceramic Tiles
  • Sanitaryware
  • Tableware
  • Refractory
  • Rubber
  • Plastic
  • Fibreglass

Specification of Hydrous China Clay

Physical & Chemical Analysis
Parameters PMH-94
L-Value 94.15
a-Value 0.49
b-Value 3.70
Shrinkage 4.80%
Dry M.O.R (kg/cm2) 10.30
Fired M.O.R (kg/cm2) 125
Water Absorption 19.21%
Water of Plasticity 29.6%
Whiteness 85.73
Residue on 300# 0.12%
SiO2 52.21%
Al2O3 33.55%
Fe2O3 0.32%
TiO2 0.80%
Cao Trace
Mgo 0.40%
Na2O 0.21%
K2O 0.09%
LOI (Loss on Ignition) 11.85%
Temperature °C 1190-1200
Firing Colour White

Application of Hydrous China Clay

  • Paper
  • Paint
  • Ink
  • Adhesive
  • Rubber
  • Plastic
  • Cables

Application of Calcined China Clay

  • Synthetic Zeolite
  • Paint Extender
  • Portland cement
  • Paper
  • Rubber
  • PVC-Cables/Wire