Do you mean stearate coating ?

If so, why not follow precipitation technique of Ca CO3 in the presence of sodium stearate ? A uniform thin coating of insoluble Ca stearate will be formed.

RG ■

Basically this is a wet process to get small production quantities and require large tanks and water supply. Tanks can be fabricated at site or PVC tanks can be purchased. The process involves co-addition of calculated sodium carbonate/sodium stearate solutions to calcium chloride solution. Bubbling CO2 can also be done under controlled conditions.

RG ■

the best way for producing fine calcium carbonate is to use ball mill with ultra-fine classifying system.

OME Malaysia has for mission the engineering of-the art ultra-fine classifying, grinding and coating of Calcium Carbonate.

We are dedicated to produce air classifiers,

Constant innovation on our classifiers has lead to sharper cuts, less maintenance and the ability to produce minerals of d98<8µm.

We can supply you with finest quality equipment at a good price we have experience in the field and had already installed many plants in Malaysia, Thailand and Saudi Arabia.

Please fill free to send your enquiries and we will be happy meet you and discuss your project.

Hayayoo@yahoo.com

Marketing Manager ■

There are at least five different systems how to coat fine ground calcium carbonate. The best solution is to use a Pin Mill with molten stearic acid for mixing intensively.

This system doesn't affect the quality of the coated material. Other process like coating inside ball mill or agitated ball mills always contaminate the final product and therefore have a bad impact on the final product quality.

For more information please contact:

Robert Rosen

r.rosen@alpine.hosokawa.com ■