Talc purification process
SUSTAINABLE PROCESS FOR PURIFICATION AND SUBMICRONIZATION OF TALC PARTICLES
DESCRIPTION
Process involves an acid treatment to purify or submicronize talc particles containing up to 40% of associated minerals. This procedure also allows to recover and reuse, through selective precipitation, cations of gangue minerals avoiding toxic residues. High purity nanotalc particles are obtained.
APPLICATIONS
Mining industry | Nanocomposites | Paints | Plastic additives | Industrial talc |
ADVANTAGES
• Purified and delaminated talc particles
• Byproducts can be reused in the same process
• Byproducts have commercial value
• Sustainable process without residuals
• Resulting particles suitable for many applications
• Talc particles morphology conservation
DEVELOPMENT STATUS
Process probed at laboratory scale. It is suitable to be scaled up.
INTELLECTUAL PROPERTY STATUS
Granted Patent up to 25/03/2030 AR075937B1 (Argentine)
RESEARCHERS
Luciana Castillo, Silvia Barbosa