Kaolin also called China clay (Kaolin) is a naturally occurring whitish & soft clay substance that have developed from the chemical weathering of granite, an igneous feldspar rocks in hot, moist climates. China clay (Kaolin) is hydrated aluminum silicate having Al2O32SiO22H2O chemical formula.
Kaolin was first discovered in the mountainous province of Kiangsi, China in A.D. 500. The word “kaolin” derives from Chinese character ‘kao lin’ which means high ridge. It was first used by the Chinese to make high quality porcelain.
Washed or levigated China clay (Kaolin) is produce by levigation process. Raw China clay (Kaolin) is mixed with water to create milk shake like slurry. This slurry is passed through de-gritting, solid-liquid separation, Filtering & drying process & then it became water washed Chin clay (Kaolin).
At HRD, we manufacture different types of washed China clay (Kaolin) grades which are available in powder, granules cum powder & lumps form. These grades are used for different applications.
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