Selective recovery method of vanadium and cesium from waste sulfuric acid vanadium catalyst, and high-quality vanadium aqueous solution and cesium alum produced thereby
US-11807544-B2 · Nov 7, 2023 · US
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Sulfates
Sulfates · 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 | C01F17/282 |
| Official title | Sulfates |
| Display label | Sulfates |
| Total patents | 14 |
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 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 3 |
| 2023 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of recovering rare earth metals
US-2023257278-A1 · Aug 17, 2023 · US
Rare earth metal extracting bacterial consortia
US-2023257694-A1 · Aug 17, 2023 · US
Selective recovery method of vanadium and cesium from waste sulfuric acid vanadium catalyst, and high-quality vanadium aqueous solution and cesium alum produced thereby
US-2023138828-A1 · May 4, 2023 · US
Method for producing high-purity scandium oxide
US-10968112-B2 · Apr 6, 2021 · US
Method for producing high-purity scandium oxide
US-2021032119-A1 · Feb 4, 2021 · US
Cerium sulfate chelated sulfur dioxide, a preparation method and a use thereof
US-10899628-B2 · Jan 26, 2021 · US
Upgrade of yttrium in a mixed rare earth stream using iminodiacetic acid functionalized resin
US-10696562-B2 · Jun 30, 2020 · US
Method for recovering scandium
US-10570480-B2 · Feb 25, 2020 · US
Cerium sulfate chelated sulfur dioxide, a preparation method and a use thereof
US-2019185336-A1 · Jun 20, 2019 · US
Hydrate of Rare Earth Metal Sulfate, Method for Producing Same, and Chemical Thermal Storage Material
US-2019002302-A1 · Jan 3, 2019 · US
Method for recovering scandium
US-2018087128-A1 · Mar 29, 2018 · US
Method and apparatus for chemical process intensification
US-9486787-B1 · Nov 8, 2016 · US
Upgrade of yttrium in a mixed rare earth stream using iminodiacetic acid functionalized resin
US-2015158736-A1 · Jun 11, 2015 · US