Use of calcium fluoride in the bayer process
US-12371337-B2 · Jul 29, 2025 · US
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Separation of the insoluble residue, e.g. of red mud
Separation of the insoluble residue, e.g. of red mud · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01F7/0646 |
| Official title | Separation of the insoluble residue, e.g. of red mud |
| Display label | Separation of the insoluble residue, e.g. of red mud |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for aluminum-enhanced dealkalization of red mud and separation and recovery of aluminum and iron
US-11332380-B2 · May 17, 2022 · US
Use of Calcium Fluoride in the Bayer Process
US-2022135417-A1 · May 5, 2022 · US
Settler for decanting mineral slurries and method for separating clarified liquid from thickened slurry of said mineral slurries
US-10898830-B2 · Jan 26, 2021 · US
Method for aluminum-enhanced dealkalization of red mud and separation and recovery of aluminum and iron
US-2020299145-A1 · Sep 24, 2020 · US
Process and installation for producing alumina trihydrate by alkaline digestion of bauxite ore
US-10508042-B2 · Dec 17, 2019 · US
Use of polyols as scale control reagents in the mining processes
US-10112843-B2 · Oct 30, 2018 · US
Process and installation for producing alumina trihydrate by alkaline digestion of bauxite ore
US-2017001876-A1 · Jan 5, 2017 · US
Settler for Decanting Mineral Slurries & Method for Separating Clarified Liquid from Thickened Slurry of Said Mineral Slurries
US-2017001129-A1 · Jan 5, 2017 · US
Use of Polyols as Scale Control Reagents in the Mining Processes
US-2016122196-A1 · May 5, 2016 · US
Use of polyols as scale control reagents in the mining processes
US-9284625-B2 · Mar 15, 2016 · US