Our process

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Hidden Beauty

The hidden beauty of kaolin or china clay was already appreciated from as early as 1st century AD.

After its discovery in the mountainous province of Kiangsi, in AD500, it was first used by the Chinese to make high quality porcelain. Hence the name ‘Kaolin’ was derived from ‘Kao Lin’, meaning ‘High Ridge’ in Chinese.

A natural mineral found in partly decomposed granite, processed or refined kaolin is available in either the form of white powder or granules, and has a natural whiteness and fineness. In addition to its non-abrasive property and chemical stability, it is a versatile product with a wide range of applications.

As a family owned and operated company we are hands on business owners and intimately involved in daily operations. Time on the shop floor interacting with employees is routine, promoting their development and be proud of their work.

From Earth to Good Use

Before kaolin can be put to good use, it has to go through several production processes.

First, raw kaolin has to be extracted and processed using the wet production method which involves dissolving, segregation, filtering, de-watering and drying operations.

Our Process

1. Crude kaolin ore storage yard

Clay is extracted by excavators.

2. Box Feeder

Trucks then transport this clay to the processing plant.

3. Drum attritor pebbles / wood piece reject

4. Rotary screen coarse silica sand reject

5. Hydrocyclone staging fine silica sand / coarse Kaolin reject

6. Thickener and finished product slurry tanks

At the plant, this mixture of clay and water, commonly referred to as slurry, is passed through a series of filtering and de-watering tanks.

7. Bleaching tanks

During this process, the fine sand and mica are extracted from the clay particles through suspension in water. The clay is meanwhile subjected to a number of complex chemical treatments to produce the different grades of the final product.

8. Filtration plant

Treated slurry is next passed through the filter press where most of the water is removed from the clay, resulting in slabs of pressed kaolin cake.

9. Dryer pulverizer

Finally, the slabs of pressed kaolin cake are cut in smaller pieces and placed in drying sheds for natural drying, or undergo dryer for low moisture product.

10. Packing Station

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