Preparation of rare earth metals and other chemicals from industrial waste coal ash
US-2024271247-A1 · Aug 15, 2024 · US
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from waste-like raw materials, e.g. fly ash or Bayer calcination dust
from waste-like raw materials, e.g. fly ash or Bayer calcination dust · 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 | C01F7/0693 |
| Official title | from waste-like raw materials, e.g. fly ash or Bayer calcination dust |
| Display label | from waste-like raw materials, e.g. fly ash or Bayer calcination dust |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 1 |
| 2023 | 2 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Preparation of rare earth metals and other chemicals from industrial waste coal ash
US-11866804-B2 · Jan 9, 2024 · US
Method for recycling iron and aluminum in nickel-cobalt-manganese solution
US-11760655-B2 · Sep 19, 2023 · US
Method for recycling iron and aluminum in nickel-cobalt-manganese solution
US-2023227325-A1 · Jul 20, 2023 · US
Preparation of rare earth metals and other chemicals from industrial waste coal ash
US-11186894-B2 · Nov 30, 2021 · US
Preparation of rare earth metals and other chemicals from industrial waste coal ash
US-2019153562-A1 · May 23, 2019 · US
Method of recovering rare earth aluminum and silicon from rare earth-containing aluminum-silicon scraps
US-10280482-B2 · May 7, 2019 · US
Method of recovering rare earth aluminum and silicon from rare earth-containing aluminum-silicon scraps
US-2018363098-A1 · Dec 20, 2018 · US