Water Washed Process:
Blunging: The Kaolin Clay (kaolin) is mixed with water to create milk-shake-like slurry. Slurry is simply the water and dispersed clay mixture, which puts the clay particles in suspension.
De-gritting: The slurried Kaolin Clay (kaolin) is usually transported through pipelines to degritting facilities, where sand, mica and other impurities are extracted with the help of gravity.
Solid-Liquid Separation: We feed 35-40% solid concentration slurry in to the filter press by stroke pumps to separate water out of slurry. Due to stickiness of the clay we go up to 8 kg/cm2 pressure. After formation of
clay cake the moisture content varies from 20-25%.
Filtering and Brightness enhancement:
With both the fine and coarse Kaolin Clay (kaolin) particle fractions, brightness is enhanced through one or move processes which will remove iron, titanium, organic, and other undesirable materials.
Drying: Large rotary vacuum filters remove water from the slurried Kaolin Clay (kaolin). Drying is effected through solar power.
Powdering and Packing:
After Sun drying we break the cakes in to small sizes max 5” or powder as per the requirement of customer. We make powder by hammer grinding mill
Kaolin
Use
Kaolin is part of our natural world, and its uses are multiple and
diverse. Because of its whiteness, fine particle size and plate-like
structure, kaolin is suitable as a coating, functional filler, extender,
ceramic raw material and pigment. It also holds importance as a raw
material in refractory applications, catalysts, concrete and fiber
glass. Kaolin is a unique industrial mineral that remains chemically
inert over a wide pH range and offers excellent coverage when used as a
pigment in coated films.
Paper
Kaolin has been used in papermaking for many years, both as a coating
pigment and as a filler to replace fiber. Kaolin is especially suited
for paper applications because it possesses desirable optical
properties, is generally chemically inert and is also relatively
inexpensive when compared to other minerals.
Plastics
Kaolin is widely used as a filler in the plastics industry because of
its inert chemical nature and its unique size, shape and structure. In
fact, the U.S. plastics and adhesives industries consume up to 125,000
tons of kaolin per year.
Agriculture
Kaolin is used as a carrier and diluent in fertilizers, pesticides and
related products. Due to its platy structure, kaolin is very suitable as
a carrier because it aids the retention of the formulation on the plant.
Rubber
Kaolin is commonly used as a functional filler in rubber applications.
While kaolin improves overall performance for rubber in general,
different types of the white pigment play specific roles in rubber
applications.
Paint
Kaolin has been used in paints for decades and is commonly included in
the extender pigments category. Kaolin is used in paint to: 1) reduce
the amount of expensive pigments, such as titanium dioxide; 2) assist
with desired rheological properties that help maintain proper
dispersion; and 3) provide bulk to the product.