Sustainable method for recycling smelting works dusts and sludges to produce iron-containing, heavy-metal-depleted reclaimed materials with recovery of lead and zinc
US-12448666-B2 · Oct 21, 2025 · US
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Chloridising roasting
Chloridising roasting · 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 | C22B1/08 |
| Official title | Chloridising roasting |
| Display label | Chloridising roasting |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and device for recycling polyanion-based lithium secondary battery cathode material
US-2025309390-A1 · Oct 2, 2025 · US
Chloride based volatility for the recovery of uranium from nuclear fuel salt
US-2025182919-A1 · Jun 5, 2025 · US
Method for manufacturing battery material
US-2025042755-A1 · Feb 6, 2025 · US
Recycling method of positive electrode material for secondary batteries and device using the same
US-2024339689-A1 · Oct 10, 2024 · US
Method for recycling battery by incomplete extraction
US-11920213-B2 · Mar 5, 2024 · US
Sustainable method for recycling smelting works dusts and sludges to produce iron-containing, heavy-metal-depleted reclaimed materials with recovery of lead and zinc
US-2023295765-A1 · Sep 21, 2023 · US
Method for recycling battery by incomplete extraction
US-2023272503-A1 · Aug 31, 2023 · US
Method for enriching precious metals from printed circuit board incineration ash from molten pool by circulating chlorination
US-11447845-B2 · Sep 20, 2022 · US
A Method for Enriching Precious Metals from Printed Circuit Board Incineration Ash from Molten Pool by Circulating Chlorination
US-2021324496-A1 · Oct 21, 2021 · US
Vanadium recovery method
US-10486983-B2 · Nov 26, 2019 · US
Vanadium recovery method
US-2018297856-A1 · Oct 18, 2018 · US
Method for improving quality of titanium-containing feedstock
US-9803261-B2 · Oct 31, 2017 · US
Method for improving quality of titanium-containing feedstock
US-2015368753-A1 · Dec 24, 2015 · US
Recovery of base metals from sulphide ores and concentrates
US-9169534-B2 · Oct 27, 2015 · US