Class C01D : COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
Subclass 1/22: Oxides or hydroxides of sodium, potassium, or alkali metals in general Hydroxides Preparation by reacting oxides or hydroxides with alkali metal salts with carbonates or bicarbonates
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11465907 | Process for producing a concentrated aqueous sodium hydroxide solution | Nov 20, 20 | Oct 11, 22 | Solvay SA |
| 11414323 | Treatment method for reducing carbon dioxide emission of combustion exhaust gas | Apr 11, 19 | Aug 16, 22 | SENTEC CO. LTD.; |
| 9975100 | Recovering a caustic solution via calcium carbonate crystal aggregates | May 09, 14 | May 22, 18 | Carbon Engineering Ltd. |
| 9593023 | Process for treating a sodium carbonate purge | Nov 11, 14 | Mar 14, 17 | SOLVAY SA |
| 9325006 | Method for preparing positive active material for lithium ion secondary battery, positive active material prepared thereby, and lithium ion secondary battery including the same | Apr 17, 12 | Apr 26, 16 | SAMSUNG SDI CO., LTD. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2023/0054,645 | DHSV SCALE REMOVAL METHOD IN THE PRODUCTION STRING | Aug 18, 22 | Feb 23, 23 | Not available |
| 2020/0131,045 | TREATMENT METHOD FOR REDUCING CARBON DIOXIDE EMISSION OF COMBUSTION EXHAUST GAS | Apr 11, 19 | Apr 30, 20 | Not available |
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