Talc is a hydrothermal alteration mineral. Magnesium-rich minerals are often transformed into talc by hydrothermal alteration, so the talc is often seen as olivine, refractory pyroxene, amphibole, tremolite and other minerals. Talc is a common silicate mineral. It is very soft and has a creamy feel.

The ore dressing technology of talc

Because of talc’s inherent floatability, it can be floatated with the help of hydrocarbon oil collectors . The commonly used collector is kerosene, and flotation oil is used as foaming agent. The foam formed by methyl isobutyl carbinol (MIBC) is brittle. This facilitates in obtaining high-quality concentrates. The process of talc flotation is relatively simple. The final concentrate can be obtained by only one roughing, one cleaning and 2-4 concentrating.

Manual selection is carried out according to the difference of talcum and gangue minerals. As it has been mentioned above, talc has a good creamy feel. The higher its grade is, the better the creamy feel would be. The high-grade talc blocks in Chinese talc mines are generally selected by manual selection.

Except for talc, talc mine also contains magnesite, magnetite, magnetite pyrite, tremolite and other minerals. The embedded particle size is about 0.5mm. In the electrostatic field, talc is negatively charged, and magnesite is positively charged. It is known that magnetite and magnetite are good conductors, so the above minerals can be easily separated in the electric field.

The talc concentrate must have a certain degree of whiteness as well as a certain fineness. Because of the presence of stained iron ore in the talc stone, sometimes the above method is not enough. Then it is necessary to remove iron ore by magnetic separation.

Ultra-fine talc grinding machine is the equipment that you cannot miss. This machine has adopted the advanced intelligent speed control device. This device could make the material be transported into the machine body evenly, adjust the main speed to fit for different grinded materials.  More information of this model machine can be found on our website. If you have any questions, please contact us. You can chat with us online, leave messages on our website or call us directly.