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US 10,308,518 B2Granted
Method for the manufacturing of a suspension comprising a calcium carbonate-comprising material
AssigneeOmya International AG
InventorsDaniel Gantenbein, Espen Berg-Hansen, Rolf Endre Orten
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Abstract
The present invention relates to a process for the manufacturing of a calcium carbonate-comprising material, to a calcium carbonate-comprising material obtained by the process as well as the use of the calcium carbonate-comprising material for paper filler and paper coating applications, in plastics applications, in paints, in adhesives, in sealings, in concrete, in agriculture applications, in food applications, in cosmetic applications or in pharmaceutical applications.
Claims27
A process for manufacturing a calcium carbonate-comprising material, the process comprising the steps of:
- a) providing at least two aqueous suspensions comprising a calcium carbonate-comprising material, wherein
- i) the first aqueous suspension has a solid content from 1.0 to 82.0 wt.-%, based on the total weight of the aqueous suspension, and a content of particles having a particle size <2 μm in the range from 1.0 to 30.0 wt.-%;
- and
- ii) the second aqueous suspension has a solid content from 10.0 to 82.0 wt.-%, based on the total weight of the aqueous suspension, and a content of particles having a particle size <2 μm in the range from >30.0 to 100.0 wt.-%;
- b) mixing the at least two aqueous suspensions provided in step a) to obtain an aqueous suspension mixture;
- c) grinding the aqueous suspension mixture obtained in mixing step b).
3 more elements
Dependencies are inferred from the claim text.