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Kaolin, also called china clay, is made from natural rock composed of aluminosilicate clay or kaolinite. Kaolin has wide applications in different industries. Moreover, their classification depends on their industrial use, which includes film formation, fiber extension, polymer extension and chemical composition. Choose a kaolin processing machine to help you make kaolin for beauty products, paper filler, coating, ceramics and even medicine.

What kaolin equipment do you need?

Mixing and fluid bed granulation

A mixing & fluid bed granulation system is the combination of a fluid bed dryer and a h...

High-shear impact mixer

When you need to mix cohesive powders with liquids or melt binders and require a homogenous end-produ...

Continuous high impact mixer

A high-impact mixer can help you to produce a homogeneous mixture when you are mixing powders a...

Flash drying system

Flash drying refers to the removal of moisture by a stream of hot gas that goes through a stream of small...

Conical screw mixer

When you want to mix segregative, free-flowing powders and pastes that require perfect mixing quality and...

Continuous paddle dryer

Purposely focused on the indirect heating and drying of slurry, filter cakes, powders, pastes and gra...

Automatic bag slitter

Unacceptably high dust levels can be generated whilst manual emptying and handling of bags, also produc...

Hygienic FIBC handling line

There are many considerations when handling FIBC’s (Flexible Intermediate Bulk Containers)...

Big bag discharge system

Dust emissions, product loss and product contamination are the main risks when discharging products ...

Light duty rotary dust valve

In some light industrial applications there is limited pressure differential for valve operation.

Heavy duty rotary valve

Handling powdered and granulated materials in pneumatic conveying systems requires consistent, safe v...

Special duty horizontal metering valve

Occasionally, there is no suitable standard valve available for a particular conveyi...

Dual channel plug diverter valve

Short switching times are often required when diverting or combining powder or granular sol...

Two-way flap type diverter valve

Routing powder, pellets or granules from a product source to two receiving points must be d...

Circuit-air classifier

For high throughputs, with a fineness range of approx. d97 = 32 µm – 200 µm. Ideal for use in th...

Pelleting press with overhead drive

Production of certain pelletized products requires working with output products of a pa...

Small scale pelleting press

Many industries require reliable pelletizing equipment with smaller scale production capacities....

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Tell us about your production challenge

When selecting production equipment for a production plant, it is important to talk to someone with experience in your field. Our industry experts have experience with various industrial applications. We’d love to help you!
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Removing impurities with the help of a kaolin processing machine

Extracted kaolin has many impurities. It’s essential to purify the resulting clay slurry through bleaching before grinding it to improve the particle size to a fine soft texture. To achieve this separation, use the flotation technique. It removes the colored impurities and gives you the white kaolin by calcination. Note, also, that fine particle size is a problem in flotation. This is why it is advisable to use methods of flotation based on the range of fine particles and industry. It is important to remove excess water by drying to have control of the product’s end moisture. You can use a fluid bed dryer to achieve this.

A valued mineral: kaolin application in different industries

Kaolin has unique chemical and physical properties which makes it a valued natural mineral in the manufacturing industry. The paper industry mixes kaolin with cellulose fiber for filling, and mixes it with water and adhesives for coating. This is to increase printability. Health benefits of kaolin make it a sought after mineral in the medical industry.

It can treat diarrhea, mouth sore, ulcers, and also helps in tablets production. Controlling the level of viscosity is a problem in the adhesive industry, but including kaolin during production with an enclosed mixing system for adhesives can help you with that. Kaolin processing equipment helps grind kaolin to a suitable particle size. This controls low and high shear viscosities of adhesives.

Wide range of applications requires different processing methods

Kaolin products are widely used in cosmetology because of their fine size particles, which makes them safe and smooth on skin. For this reason,  they can compose exfoliant, anti-inflammatory and anti-bacterial products. The absorbent nature of kaolin makes it a good oil control product.

Kaolin helps to detoxify the scalp and prevents yeast growth. Kaolin clay can also be a deodorant alternative because of its ability to neutralise body odor. For a clearer plague-free dentition, kaolin can also be included in tooth powder. The method of processing depends on the industry. For example, the paper industry uses the wet process while ceramic manufacturers use the dry-processed kaolin. Mechanical methods using kaolin processing machine for crushing and screening don’t alter their chemical properties.

How to decrease kaolin’s environmental impact

Kaolin has little or no adverse effect on human health. Yet, the open pit mining of kaolin clay creates environmental disturbance and water erosion. To reduce erosion, there are regulatory laws that require levelling the mined area. This involves planting of trees and dust control while operating a kaolin making machine. By doing that, studies have shown that kaolin is environmentally safe. Producer’s main concern should be the mining process, which may lead to release of toxic chemicals into underground water. However, operating companies have found safer ways, such as creating a number of independent pits for mining activities.

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