Acid wash of red mud (bauxite residue)
US-12528709-B2 · Jan 20, 2026 · US
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characterised by the flocculant added to the slurry (final clarification of the aluminate solution C01F7/47)
characterised by the flocculant added to the slurry (final clarification of the aluminate solution C01F7/47) · 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 | C01F7/0653 |
| Official title | characterised by the flocculant added to the slurry (final clarification of the aluminate solution C01F7/47) |
| Display label | characterised by the flocculant added to the slurry (final clarification of the aluminate solution C01F7/47) |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 3 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Acid wash of red mud (bauxite residue)
US-12049409-B2 · Jul 30, 2024 · US
Systems and methods for alumina production
US-11584657-B2 · Feb 21, 2023 · US
Acid wash of red mud (bauxite residue)
US-2023051612-A1 · Feb 16, 2023 · US
Acid wash of red mud (bauxite residue)
US-2022185688-A1 · Jun 16, 2022 · US
Recovery of mining processing product using boronic acid-containing polymers
US-11208332-B2 · Dec 28, 2021 · US
Scale inhibitor compositions and methods of using
US-11046794-B2 · Jun 29, 2021 · US
Systems and methods for alumina production
US-2020031683-A1 · Jan 30, 2020 · US
Recovery of mining processing product using boronic acid-containing polymers
US-2020024148-A1 · Jan 23, 2020 · US
Process and installation for producing alumina trihydrate by alkaline digestion of bauxite ore
US-10508042-B2 · Dec 17, 2019 · US
Silicon containing polymer flocculants
US-2019300636-A1 · Oct 3, 2019 · US
Recovery of mining processing product using boronic acid-containing polymers
US-10427950-B2 · Oct 1, 2019 · US
Silicon containing polymer flocculants
US-2019241693-A1 · Aug 8, 2019 · US
Silicon containing polymer flocculants
US-10301414-B2 · May 28, 2019 · US
Recovery of mining processing product using boronic acid-containing polymers
US-2017158522-A1 · Jun 8, 2017 · US
Process and installation for producing alumina trihydrate by alkaline digestion of bauxite ore
US-2017001876-A1 · Jan 5, 2017 · US
Washing method of goethite-containing red mud
US-9533891-B2 · Jan 3, 2017 · US
Water-in-Oil Emulsion Compositions and Methods for Making and Using the Same
US-2016185613-A1 · Jun 30, 2016 · US
Scale inhibitor compositions and methods of using
US-2016176995-A1 · Jun 23, 2016 · US
Silicon containing polymer flocculants
US-2016159660-A1 · Jun 9, 2016 · US