China Clay or Kaolin is one of the purest form of clays, composed chiefly of the mineral kaolinite, usually formed when granite is changed by hydrothermal metamorphism. Kaolinite is a clay mineral, part of the group of industrial minerals, with the chemical composition Al2Si2O5(OH)4. It is a layered silicate mineral, with one tetrahedral sheet of silica (SiO4) linked through oxygen atoms to one octahedral sheet of alumina (AlO6) octahedra.
Kaolinite has a low shrink - swell capacity and a low cation-exchange capacity (1–15 meq/100 g). It is a soft, earthy, usually white mineral (dioctahedral phyllosilicate clay), produced by the chemical weathering of aluminium silicate minerals like feldspar. In many parts of the world, it is colored pink-orange-red by iron oxide, giving it a distinct rust hue. Lighter concentrations yield white, yellow or light orange colors. Commercial grades of kaolin are supplied and transported as dry powder, semi-dry noodle or as liquid slurry.
Salient Features
Contributes in improving the chemical resistance, electrical properties and reduction in water absorption
Lowers the crack tendency in the finished products
Improves shock resistance as well as surface quality
China Clay is a clay mineral with the chemical composition AlSiO3O5(OH)3. It is layered silicate mineral. It is soft earthy, usually white in color, produced by the chemical weathering of Aluminium Silicate mineral like Feldspar. Commercial grades of China Clay are supplied and transported as dry powder form, semi dry noodle form or as slurry.
Applications:
- It is used in Cer/bamics for body & glazing of Tiles and Sanitary Wares.
- In paper it is used as filler. It is also used for paper coating purpose.
- It is used in paint also to extend Titanium Dioxide (TiO2) and modify gloss level.
- It is used in rubber to enhance reinforcement properties.
China clay belongs to the group of Minerals called Kaolinite. It is one of the most common minerals. Kaolinite clay occurs in abundance in soils that have formed from the chemical weathering of rocks in hot, moist climates—for example in tropical rainforest areas.
Comparing soils along a gradient towards progressively cooler or drier climates, the proportion of kaolinite decreases, while the proportion of other clay minerals.
We are supplier and exporter of Calcined China Clay.
We are offering an extensive range of high-quality Calcined China Clay that is used for paints, rubber and soap industries. Features: Chemically inert Correctly formulated Enhanced shelf life Specifications: Type: Powder Colour: White Packaging - As per Client Applications- Paints, Rubber and Soap industries.
China Clay is a clay mineral with the chemical composition AlSiO3O5(OH)3. It is layered silicate mineral. It is soft earthy, usually white in color, produced by the chemical weathering of Aluminium Silicate mineral like Feldspar. Commercial grades of China Clay are supplied and transported as dry powder form, semi dry noodle form or as slurry.
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.
Product Specifications
PARAMETERS PI 96(noodles) PI 95(M) PI 94 PI 92 PI 90 1RL
RESULT (%) RESULT (%) RESULT (%) RESULT (%) RESULT (%) RESULT (%)
Loss of Ignition 13.56 13.81 14.82 13.31 13.190 10.850
Silica as SiO2 45.85 48.10 47.57 45.90 46.400 51.620
Iron as Fe2O3 0.29 0.30 0.35 0.536 0.300 1.530
Alumina as AI2O3 38.99 35.43 35.48 38.70 38.190 33.770
Potassium as K2O 0.047 0.20 0.035 0.067 0.083 0.210
Sodium as Na2O 0.048 0.24 0.051 0.0396 0.100 0.1400
Calcium as caO Trace 0.31 0.15 Trace Trace Trace
Magnesium as MgO 0.097 0.32 0.107 0.109 0.170 0.290
Titanium as TiO2 0.85 1.28 1.180 1.100 1.290 1.32
Firing Whiteness 92.00 87.59 89.20 89.90 81.60 63.00
L Value 95.89 94.54 95.33 94.83 93.07 87.71
A Value 0.40 1.23 0.56 0.65 0.72 1.72
B Value 3.39 3.00 3.78 3.30 5.90 11.70
Firing Colour Snow White Creamish White White Creamish Pinkish
Shrinkage 5.80 4.75 5.80 5.20 7.56 9.00
Firied Temperature C 1220 1220 1220 1220 1220 1220
Residue On 325# 0.34 0.25 0.36 0.24 0.88 1.08
Water Of Plasticity 36.00 34.00 38.00 41.00 46.0 41
Water Absorption 15.56 14.30 15.42 19.24 17.09 15.81
Dry M.O.R Kg/cm2 15.00 24.31 10.00 12.00 10.00 10.00
Fired M.O.R Kg/cm3 120.00 237.66 140.00 140.00 145.00 110.00
Ball Clay is a variety of Kaolinite, like china-clay. It differs from china-clay in having high plasticity and less refractoriness. In chemical composition, ball and china clays do not differ greatly except that the former contains a larger proportion of silica. It has derived its name from the practice of removing it in the form of ball-like lumps from the clay pits in the UK.
Ball clays are kaolinitic sedimentary clays that commonly consist of 20-80% kaolinite, 10-25% mica, 6-65% quartz. Localized seams in the same deposit have variations in composition, including the quantity of the major minerals, accessory minerals and carbonaceous materials such as lignite. They are fine-grained and plastic in nature, and, unlike most earthenware clays, produce a fine quality white-coloured pottery body when fired, which is the key to their popularity with potters. Ball clays are relatively scarce deposits due to the combination of geological factors needed for their formation and preservation.
BizWhite has been mining, processing, and supplying high quality Kaolin products, from its reserves in Gujarat.
On recognising the high demand for this multi-usage mineral and also the shortages of high-quality kaolin, we have positioned ourselves as one of the overriding kaolin china clay manufacturers and exporters from India.
Our Kaolin clay products are immensely used in the manufacturing of ceramics, papers, colours, vitrified tiles, soap, ultramarine, and various other purposes. Translucent quality, greater strength, and bright white appearance are the unique features of our Kaolin clay lumps.
We have our Kaolin Clay available in lumps, noodles and powder form.
Quartz is one of the abundant minerals found on the earth. It is used in wide range ofapplications such as production of glass, making of hard stone carvings and jewelry. The offered Quartz Silica Sand is used in a variety of applications in the foundry, glass, construction, ceramics, and various other industries.
Quartz is the most abundant and most common mineral on the Earth. It is found in almost every geological environment and also it is at least a component of almost every rock type. It has a hexagonal crystal structure and is made of trigonal crystallized silica. It is most varied in terms of varieties, colors and forms.
The most important distinction between the types of quartz is that one is of macrocrystalline, which is individual crystal visible to the unaided eye, and the other is microcrystalline or cryptodrystalline varieties, aggregates of crystals visible only under high magnification. Chalcedony is the generic term for cryptocrystalline quartz. The transparent variety tends to be macrocrystalline and the cryptocrystalline varieties are either translucent or mostly opaque.
Salient Features
Clear (in pure form)
6-sided prism ending in 6-sided pyramid (typical)
It has a hardness of seven on the Mohs Scale which makes it very durable.
