Nano talcum powder and preparation method thereof
The invention provides nano talcum powder and a preparation method thereof, and relates to the technical field of mineral processing. Comprising the following steps: S1, adding talcum powder into water, adding a proper amount of a grinding aid A and a grinding aid B, and stirring and dispersing at a...
Saved in:
Main Authors | , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
21.07.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention provides nano talcum powder and a preparation method thereof, and relates to the technical field of mineral processing. Comprising the following steps: S1, adding talcum powder into water, adding a proper amount of a grinding aid A and a grinding aid B, and stirring and dispersing at a high speed to obtain slurry; s2, pumping the prepared slurry into a bead mill, and grinding until d90lt; the particle size is 100 nm, so that nanoscale talcum powder slurry is obtained; s3, filtering, drying and scattering the prepared nanoscale talcum powder slurry to obtain the nano talcum powder. In the invention, the nano talcum powder is prepared by adopting a wet grinding technology. Meanwhile, nano oxide or nano compound powder is used as one of the grinding aids, and agglomeration of nano-scale talcum powder is prevented by utilizing a steric hindrance effect, so that the problem of agglomeration caused by interlayer charge adsorption of a talc lamellar structure in wet grinding of talcum powder is solved. |
---|---|
Bibliography: | Application Number: CN202310446274 |