We have calcined kaolin :calcination of crushed raw kaolin is done in a modern rotary kilnwith high efficiency . The fired kaoline grains have high density and volume stability .The chemical constitution and properities of the calcined kaolin grains are illustrated in the following table.
Calcined Kaolin is a product developed after calcination of high purity of kaolin clay at medium to high temperatures depending on end applications for its customers Calcined Kaolin's has the most widely use in various applications worldwide.
Product Specification
Grade Name PI- 9.1 PI- 0.15 PI- 1.15 PI- 2.15 PI- Glow PI- Glitter
POW.BR(%)(ISO) 91±1 92±1 93±1 94±1 94±1 95±1
BULK Density(GMS/LIT) 330-360 330-340 320-340 280-380 280-320 280-300
RESIDUE-(500#) 0.2%(400#) 0.2% MAX 0.2% MAX 0.2% MAX 0.2% MAX 0.2% MAX
%BELOW 2 MICRON 60-65 60-67 67-75 67-75 80-85 80-90
%L.O.I 0.5 MAX 0.5 MAX 0.5 MAX 0.5 MAX 0.5 MAX 0.5 MAX
According to different requirements, five series of products have been formed, including dry pressing, hot die casting, refractory, casting and setting, structural ceramic granulator, etc. It can be widely used in electronic equipment, structural ceramics, refractories, wear-resistant materials, polishing materials and other industries.
Calcined alumina can be used in the polishing of different alumina products(mainly used in middle, fine polishing).It is also widely used in high-class aluminium refractory material, unshaped refractory materials, high aluminium ceramic product and advanced coating, etc, . Item Al2o3 % Na2o % Sio2 % Fe2o3 % D50 A4m 99.8 0.1 0.05 0.02 3.1
Alumina (Al2O3), the industrial Al2O3 is prepared from alumina (Al2O3, 3H2O) and hard alumina, and the Al2O3, which is high in purity, is usually prepared by chemical methods. Al2O3 has many isomorphic crystals, and there are currently more than 10 known types, mainly three types of crystal, namely gamma-al2o3, beta-al2o3, alpha-al2o3.Which structure is different, with different properties in high temperature above 1300 s almost entirely into alpha Al2O3.
To Pure Kaolin Is White Delicate, Soft Soil Shapekaolin And Water Combined With The Formation Ofmud Under The Action Of External Force Can Bedeformed External Force Removed, Still Maintainthis Shape, With A Strange Microporous Structurecosmetic Filler Use Has Higher Absorption And Blockthe Ability Of Free Ions
To Pure Kaolin Is White Delicate, Soft Soil Shapekaolin And Water Combined With The Formation Ofmud Under The Action Of External Force Can Bedeformed External Force Removed, Still Maintainthis Shape, With A Strange Microporous Structurecosmetic Filler Use Has Higher Absorption And Blockthe Ability Of Free Ions
Metakaolin is form of calcined or dehydroxilated china clay. During calcination morphological, mineralogical and chemical changes occur which result in products with excellent optical properties.
China clay is characterized by its fine particle size, high brightness and rheology.We develop fine and ultra fine grades of Hydrous Kaolin from our best reserves, for various industries including Paint, Paper, Printing Inks, Paper board, Rubber etc. China clay is a natural mineral found in partly decompo-sed granite, an igneous feldsparic rock. Chemically, kaolin is a hydrated aluminium silicate containing Al2O3.2SiO2.2H2O. Kaolin was first discovered in the mountainous province of Kiangsi, China in A.D. 500. The word kaolin derives from the Chinese character kaolin which means high ridge. It was first used by the Chinese to make high quality porcelain.
